Παραπομπή APA

Paul, W., & Robertson, K. (1973). Job enrichment and employee motivation. Gower press.

Παραπομπή Chicago Style

Paul, W.J, και K.B Robertson. Job Enrichment and Employee Motivation. Great Britain: Gower press, 1973.

Παραπομπή MLA

Paul, W.J, και K.B Robertson. Job Enrichment and Employee Motivation. Gower press, 1973.