APA
Forsythe T. G., . (1990). Successful. England: Thorsons Publishing Group.
Chicago
Forsythe Trevor G, . 1990. Successful. England: Thorsons Publishing Group.
Harvard
Forsythe T. G., . (1990). Successful. England: Thorsons Publishing Group.
MLA
Forsythe Trevor G, . Successful. England: Thorsons Publishing Group. 1990.