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A Punched Card System for Soil Scientists 1
Author(s) -
Clapp C. E.,
Davis R. J.,
Owens L. D.
Publication year - 1961
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1961.00021962005300060012x
Subject(s) - computer science , set (abstract data type) , search engine indexing , code (set theory) , scheme (mathematics) , information retrieval , mathematics , programming language , mathematical analysis
Synopsis A general classification scheme is presented for indexing literature references for soil science and related subjects by means of punched cards. The necessary equipment is described. A code system for soil scientists is summarized and various features of its use are set forth. The advantages of the punched card technique over alternative methods are discussed.