APA (7e ed.) Bronvermelding

Cook, M. (1997). Ten minute guide to motivating people. Alpha.

Chicago (17e ed.) Bronvermelding

Cook, Marshall. Ten Minute Guide to Motivating People. Newyork: Alpha, 1997.

MLA (9e ed.) Bronvermelding

Cook, Marshall. Ten Minute Guide to Motivating People. Alpha, 1997.