Παραπομπή APA

Van Nostrand Reinhold Company & Gellert, W. (1977). The VNR concise encyclopedia of mathematics (1st American ed.). Van Nostrand Reinhold Co..

Παραπομπή Chicago Style

Van Nostrand Reinhold Company και Walter Gellert. The VNR Concise Encyclopedia of Mathematics. 1st American ed. New York: Van Nostrand Reinhold Co., 1977.

Παραπομπή MLA

Van Nostrand Reinhold Company και Walter Gellert. The VNR Concise Encyclopedia of Mathematics. 1st American ed. Van Nostrand Reinhold Co., 1977.