Guilford, J. P. 1. . . . ., & Anastasi, A. (1950). Fields of psychology: Basic and applied (2nd ed.). Van Nostrand.
Lua i Stíl Chicago (17ú heag.)Guilford, Joy Paul 1897- , agus Anne Anastasi. Fields of Psychology: Basic and Applied. 2nd ed. New York: Van Nostrand, 1950.
Lua MLA (9ú heag.)Guilford, Joy Paul 1897- , agus Anne Anastasi. Fields of Psychology: Basic and Applied. 2nd ed. Van Nostrand, 1950.
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