Παραπομπή APA

Shartle, C. L. (1959). Occupational information: Its development and application/3e (3rd ed.). Prentice Hall.

Παραπομπή Chicago Style

Shartle, Carroll L. Occupational Information: Its Development and Application/3e. 3rd ed. New Jersey: Prentice Hall, 1959.

Παραπομπή MLA

Shartle, Carroll L. Occupational Information: Its Development and Application/3e. 3rd ed. Prentice Hall, 1959.