By Cohen, Daniel.
Philadelphia Lippincott 1974 .
125 p. 21 cm..
0397314930 | 0397314949 (pbk.)

By Cohen, Daniel.
Pocket Books 1983 .
118p , From the Collection of English as a second language. 0671493612

By Cohen, Daniel.
New York Pocket Books 1986 .
115 p. , An Archway paperback. 0671629484

By Cohen, Daniel.
New York M. Evans; [distributed by Lippincott, Philadelphia 1977 .
186 p. , Translation of : Intelligence, what is it?