APA (7th ed.) Citation

(1994). Group motivation: Social psychological perspectives (1. publ. 1993, 2. [print.].). Harvester-Wheatsheaf.

Chicago Style (17th ed.) Citation

Group Motivation: Social Psychological Perspectives. 1. publ. 1993, 2. [print.]. New York [u.a.]: Harvester-Wheatsheaf, 1994.

MLA (9th ed.) Citation

Group Motivation: Social Psychological Perspectives. 1. publ. 1993, 2. [print.]. Harvester-Wheatsheaf, 1994.