Gaya APA

Schmidt, G, E, F, C. (1993). Introductory management science 4 ed. (4 ed.). London: Prentice Hall.

Gaya MLA

Schmidt, G.D., Eppen;, F.J.Gould;, C.P.. "Introductory management science 4 ed.". 4 ed. London: Prentice Hall, 1993. Text.