Guilford, J. P., & Fruchter, B. (1973). Fundamental statistics in psychology and education (5th ed.). McGraw-Hill Kogakusha.
Cita Chicago Style (17a ed.)Guilford, Joy Paul, y Benjamin Fruchter. Fundamental Statistics in Psychology and Education. 5th ed. Tokyo: McGraw-Hill Kogakusha, 1973.
Cita MLA (9a ed.)Guilford, Joy Paul, y Benjamin Fruchter. Fundamental Statistics in Psychology and Education. 5th ed. McGraw-Hill Kogakusha, 1973.
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