Ballard, Philip Boswood.
Mental tests / Philip Boswood Ballard. - 2nd ed. - london : University of London press, 1937. - 235 p. ; 18 cm.
Includes index.
326 326
Psychology.
151.22 / B212m
Mental tests / Philip Boswood Ballard. - 2nd ed. - london : University of London press, 1937. - 235 p. ; 18 cm.
Includes index.
326 326
Psychology.
151.22 / B212m