Gaya APA

Harris, M, M. (1981). The commisions are bigger, the bonuses are higher: a guide to selling big-ticket goods and servisces . Homewood ill: DOW JONES-IRWIN.

Gaya MLA

Harris, Milton, M.. "The commisions are bigger, the bonuses are higher: a guide to selling big-ticket goods and servisces". Homewood ill: DOW JONES-IRWIN, 1981. Text.