By Ehman, Lee..
Boston Houghton Mifflin 1974 .
xiv, 458 p. , 920518 25 cm..
0395176255

London | Paris Croom Helm | Unesco 1981 .
409 p. , 920518 22 cm..
0709917201 (pbk.)

Chicago, Ill. National Society for the Study of Education | Distributed by the University of Chicago Press 1981 .
xvii, 289 p. 24 cm..

By Ehman, Lee..
Boston Houghton Mifflin 1974 .
xiv, 458 p. , 920518 0395176255

Bloomington, Ind. Indiana University Press 2000 .
xiv, 500 p. 24 cm..
0253336589 (cloth : alk. paper) | 025321355X (pbk. : alk. paper)