Ley,, P.
Paperduck
Quantitative aspects of psychological assessment : an introduction / P. Ley
Quantitative aspects of psychological assessment : an introduction / P. Ley
. - [London] : Duckworth, cop. 1972
. - 180 p. : il. 22 cm
. - (Paperduck)
37.015.3
159.9.018.7