APA استشهاد

Cohen, J. (1971). Thinking. R and Mc Nally.

استشهاد بنمط شيكاغو

Cohen, Jozef. Thinking. Chicago: R and Mc Nally, 1971.

MLA استشهاد

Cohen, Jozef. Thinking. R and Mc Nally, 1971.