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You searched for: Publisher Pennsylvania State University Remove constraint Publisher: Pennsylvania State University Resource Type Book Remove constraint Resource Type: Book
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  1. Circular 42

    Resource Type: Book
    Keyword: Earth and Mineral Sciences Experiment Station Circulars
    Publisher: Pennsylvania State University
    Object Type: GenericWork
    Date Uploaded: 2014-09-17T22:20:03Z
  2. Circular 38

    Resource Type: Book
    Creator: Edward Steidle
    Keyword: Earth and Mineral Sciences Experiment Station Circulars
    Publisher: Pennsylvania State University
    Object Type: GenericWork
    Date Uploaded: 2014-09-17T22:20:01Z
  3. Circular 37

    Resource Type: Book
    Creator: Edward Steidle
    Keyword: Earth and Mineral Sciences Experiment Station Circulars
    Publisher: Pennsylvania State University
    Object Type: GenericWork
    Date Uploaded: 2014-09-17T22:20:01Z
  4. Service to the Commonwealth through Mineral Industries Research

    Resource Type: Book
    Keyword: Earth and Mineral Sciences Experiment Station Circulars
    Publisher: Pennsylvania State University
    Object Type: GenericWork
    Date Uploaded: 2014-09-17T22:20:01Z
  5. Circular 34

    Resource Type: Book
    Creator: D.C. Jones and Edward Steidle
    Keyword: Earth and Mineral Sciences Experiment Station Circulars
    Publisher: Pennsylvania State University
    Object Type: GenericWork
    Date Uploaded: 2014-09-17T22:19:59Z
  6. A Philosophy for Conservation

    Resource Type: Book
    Creator: Edward Steidle
    Keyword: Earth and Mineral Sciences Experiment Station Circulars
    Publisher: Pennsylvania State University
    Object Type: GenericWork
    Date Uploaded: 2014-09-17T22:19:59Z
  7. Mineral Industries Extension and Correspondence Instruction

    Resource Type: Book
    Creator: D.C. Jones and Edward Steidle
    Keyword: Earth and Mineral Sciences Experiment Station Circulars
    Publisher: Pennsylvania State University
    Object Type: GenericWork
    Date Uploaded: 2014-09-17T22:19:58Z
  8. Roots of Human Progress

    Resource Type: Book
    Creator: Edward Steidle
    Keyword: Earth and Mineral Sciences Experiment Station Circulars
    Publisher: Pennsylvania State University
    Object Type: GenericWork
    Date Uploaded: 2014-09-17T22:19:58Z
  9. Circular 32

    Resource Type: Book
    Creator: Edward Steidle
    Keyword: Earth and Mineral Sciences Experiment Station Circulars
    Publisher: Pennsylvania State University
    Object Type: GenericWork
    Date Uploaded: 2014-09-17T22:19:57Z
  10. Circular 29

    Resource Type: Book
    Creator: Edward Steidle
    Keyword: Earth and Mineral Sciences Experiment Station Circulars
    Publisher: Pennsylvania State University
    Object Type: GenericWork
    Date Uploaded: 2014-09-17T22:19:57Z