Παραπομπή APA

Cohen, L., & Ehrlich, G. Structure of the real number system. Van Nostrand reinhold company.

Παραπομπή Chicago Style

Cohen, Leon, και Gertrude Ehrlich. Structure of the Real Number System. New York: Van Nostrand reinhold company.

Παραπομπή MLA

Cohen, Leon, και Gertrude Ehrlich. Structure of the Real Number System. Van Nostrand reinhold company.