Perry, J. W., & Kent, A. (1958). Tools for machine literature searching: Semantic code dictionary, equipment, procedures. New York: Interscience Publishers.
Παραπομπή Chicago StylePerry, J. W., and Allen Kent. Tools for Machine Literature Searching: Semantic Code Dictionary, Equipment, Procedures. New York: Interscience Publishers, 1958.
Παραπομπή MLAPerry, J. W., and Allen Kent. Tools for Machine Literature Searching: Semantic Code Dictionary, Equipment, Procedures. New York: Interscience Publishers, 1958.
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