Παραπομπή APA

Sengupta, R. (1971). Secretarial primer/3e (3rd ed.). Easter Law.

Παραπομπή Chicago Style

Sengupta, R.N. Secretarial Primer/3e. 3rd ed. Culcutta: Easter Law, 1971.

Παραπομπή MLA

Sengupta, R.N. Secretarial Primer/3e. 3rd ed. Easter Law, 1971.