Fundamental statistics in psychology and education - J. P. Guilford; Benjamin Fruchter (Tokya McGraw Hill Kogakusha, Ltd, 1973)
J. P. Guilford & Benjamin Fruchter: Fundamental statistics in psychology and education. (5th Ed) Tokya. McGraw Hill Kogakusha, Ltd, 1973. 0-07-025148-7--(519.502415GUI)
ENGLISH