Gaya APA

Pfafenberger, R, C., Walker, D, A. (1976). Mathematical Programming for Economics and Business (1). Ames, Iowa: The Iowa State University Press.

Gaya MLA

Pfafenberger, Roger, C.., Walker, David, A.. "Mathematical Programming for Economics and Business". 1 Ames, Iowa: The Iowa State University Press, 1976. Textbook.