APA (7 वां संस्करण) प्रशस्ति पत्र

Frailey L.E & Mamchak Susan. (1993). Hanbook of Business Letters (3rd Edition.). Super Book House.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Frailey L.E और Mamchak Susan. Hanbook of Business Letters. 3rd Edition. Bombay: Super Book House, 1993.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Frailey L.E और Mamchak Susan. Hanbook of Business Letters. 3rd Edition. Super Book House, 1993.