APA (7th ed.) Citation

Posey, B. (2011). GFI Network Security and PCI Compliance Power Tools (1st edition.). Syngress.

Chicago Style (17th ed.) Citation

Posey, Brien. GFI Network Security and PCI Compliance Power Tools. 1st edition. Syngress, 2011.

MLA (9th ed.) Citation

Posey, Brien. GFI Network Security and PCI Compliance Power Tools. 1st edition. Syngress, 2011.

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