Gaya APA

Dowling, W, F., Sayles, L, R. (1978). How Managers Motivate. The Imperatives of Supervision . United States of America: McGraw-Hil Book Company.

Gaya MLA

Dowling, William, F.., Sayles, Leonard, R.. "How Managers Motivate. The Imperatives of Supervision". United States of America: McGraw-Hil Book Company, 1978. Text.