APA استشهاد

Brown, A. A. (1971). Perspectives in economics: Economists look at thier fields of study. McGraw-Hill.

استشهاد بنمط شيكاغو

Brown, Alan A. Perspectives in Economics: Economists Look at Thier Fields of Study. New York: McGraw-Hill, 1971.

MLA استشهاد

Brown, Alan A. Perspectives in Economics: Economists Look at Thier Fields of Study. McGraw-Hill, 1971.