Guilford, J. P., & Fruchter, B. (1973). Fundamental statistics in psychology and education (5th ed.). Cacho Hermanos.
Citace podle Chicago (17th ed.)Guilford, Joy Paul, a Benjamin Fruchter. Fundamental Statistics in Psychology and Education. 5th ed. Mandaluyong, Rizal: Cacho Hermanos, 1973.
Citace podle MLA (9th ed.)Guilford, Joy Paul, a Benjamin Fruchter. Fundamental Statistics in Psychology and Education. 5th ed. Cacho Hermanos, 1973.
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