APA (7th ed.) Citation

Sill, D. (2002). The qmail handbook. Apress, Inc.

Chicago Style (17th ed.) Citation

Sill, Dave. The Qmail Handbook. Apress, Inc, 2002.

MLA (8th ed.) Citation

Sill, Dave. The Qmail Handbook. Apress, Inc, 2002.

Warning: These citations may not always be 100% accurate.