APA (7 वां संस्करण) प्रशस्ति पत्र

Leland, K., & Bailey, K. (2009). E-mail in an instant: 60 ways to communicate with style and impact. Career Press.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Leland, Karen, और Keith Bailey. E-mail in an Instant: 60 Ways to Communicate with Style and Impact. Franklin Lakes, N.J: Career Press, 2009.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Leland, Karen, और Keith Bailey. E-mail in an Instant: 60 Ways to Communicate with Style and Impact. Career Press, 2009.