APA (7th ed.) Citation

Gill, P., & Phythian, M. (2006). Intelligence in an insecure world / Peter Gill and Mark Phythian. Polity.

Chicago Style (17th ed.) Citation

Gill, Peter, and Mark Phythian. Intelligence in an Insecure World / Peter Gill and Mark Phythian. Cambridge: Polity, 2006.

MLA (9th ed.) Citation

Gill, Peter, and Mark Phythian. Intelligence in an Insecure World / Peter Gill and Mark Phythian. Polity, 2006.

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