APA Edition Citation

Cohen, L. W., & Ehrlich, G. (1969). Structure of the real number system.

Chicago Edition Citation

Cohen, Leon W., and Gertrude Ehrlich. Structure of the Real Number System. Van Nostrand Reinhold Co., London, 1969.

MLA Edition Citation

Cohen, Leon W., and Gertrude Ehrlich. Structure of the Real Number System. 1969.

Warning: These citations may not always be 100% accurate.