APA (7th ed.) Citation

Howey, H. (2011). Wool / by Hugh Howey (2nd ed.). Hugh Howey.

Chicago Style (17th ed.) Citation

Howey, Hugh. Wool / by Hugh Howey. 2nd ed. [U.S.?]: Hugh Howey, 2011.

MLA (9th ed.) Citation

Howey, Hugh. Wool / by Hugh Howey. 2nd ed. Hugh Howey, 2011.

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