Παραπομπή APA

Gellert, W. (1975). VNR concise encyclopedia of mathematics. Van Nostrand Reinhold Company.

Παραπομπή Chicago Style

Gellert, W. VNR Concise Encyclopedia of Mathematics. New York: Van Nostrand Reinhold Company, 1975.

Παραπομπή MLA

Gellert, W. VNR Concise Encyclopedia of Mathematics. Van Nostrand Reinhold Company, 1975.