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This article in AJ

  1. Vol. 60 No. 2, p. 244-246
     
    Received: July 28, 1967
    Published: Mar, 1968


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doi:10.2134/agronj1968.00021962006000020032x

A Versatile, Bibliographic Punched Card System for Agronomists1

  1. E. G. Siemer and
  2. D. R. Wood2

Abstract

Abstract

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.

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