Sax, Gilbert
Principles of educational and psychological : mesuremend and evaluation .-- 3 rd. ed. .-- California : Wadsworth , 1993
.--XIX, 678 p. il. 24 cm
0534099785
ENSEÑANZA
Principles of educational and psychological : mesuremend and evaluation .-- 3 rd. ed. .-- California : Wadsworth , 1993
.--XIX, 678 p. il. 24 cm
0534099785
ENSEÑANZA