Παραπομπή APA

M M C School of management. (1966). Over the telephone: Etiquette and efficiency. MMC.

Παραπομπή Chicago Style

M M C School of management. Over the Telephone: Etiquette and Efficiency. Bombay: MMC, 1966.

Παραπομπή MLA

M M C School of management. Over the Telephone: Etiquette and Efficiency. MMC, 1966.