APA استشهاد

Herzberg, E., & Nicholson, M. (1952). Training for retail sales staff. sir Isaac Pitman&sons.

استشهاد بنمط شيكاغو

Herzberg, Else, و Mary Nicholson. Training for Retail Sales Staff. London: sir Isaac Pitman&sons, 1952.

MLA استشهاد

Herzberg, Else, و Mary Nicholson. Training for Retail Sales Staff. sir Isaac Pitman&sons, 1952.