Gaya APA

Govoni, R, B, S, ;, E, W, C, ;, N, A. (1981). Sales management decisions strategies and cases (ed. 4). USA: Prentice Hall.

Gaya MLA

Govoni, Richard, B., Still, ;, Edward, W., Cundiff, ;, Norman, A.P.. "Sales management decisions strategies and cases". ed. 4 USA: Prentice Hall, 1981. Text.