Παραπομπή APA

Chopra, R. (1990). Office management/7e (7th ed.). Himalaya Publishing House.

Παραπομπή Chicago Style

Chopra, R.K. Office Management/7e. 7th ed. Bombay: Himalaya Publishing House, 1990.

Παραπομπή MLA

Chopra, R.K. Office Management/7e. 7th ed. Himalaya Publishing House, 1990.