APA (7th ed.) Citation

Roelofs, G. (1999). PNG The definitive guide. O'Reilly.

Chicago Style (17th ed.) Citation

Roelofs, Greg. PNG The Definitive Guide. Beijing: O'Reilly, 1999.

MLA (8th ed.) Citation

Roelofs, Greg. PNG The Definitive Guide. O'Reilly, 1999.

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