APA-viite

Pettman, B. O. (1975). Labour turnover and retention. Gower press.

Chicago-tyylinen lähdeviittaus

Pettman, Barrie O. Labour Turnover and Retention. great Britian: Gower press, 1975.

MLA-viite

Pettman, Barrie O. Labour Turnover and Retention. Gower press, 1975.