PUCPR Search for 'an:98159'

Educational achievements of thirteen-year olds in twelve countries results of an international research project, 1959-61,

Hamburg 1962 .
68 p. , Label mounted on title page: Distributed by Unesco Publications Center, New York. 24cm..

By Caswell, Hollis Leland.
New York American Book Co. 1950 .
xvii, 406 p.

By Caswell, Hollis Leland.
New York American Book Co. 1957 .
xi, 430 p. , Includes index.

By Foshay, Arthur Wellesley.
New York Teachers College Press 2000 .
xvii, 92 p. 24 cm..
0807739367 (cloth) | 0807739359 (pbk.)