A Versatile, Bibliographic Punched Card System for Agronomists1
- E. G. Siemer and
- D. R. Wood2
A versatile, inexpensive, simply operated punched card system is described. Cards may be sorted according to 1) author, 2) biological organism, 3) two separate topics, 4) two external environmental factors affecting the organism, or 5) article type. The system is readily adaptable to scientists in many research disciplines.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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