Cita APA (7a ed.)

Cottrell, M. (2011). Guide to the LEED AP Operations and Maintenance (O+M) Exam. John Wiley & Sons.

Cita Chicago Style (17a ed.)

Cottrell, Michelle. Guide to the LEED AP Operations and Maintenance (O+M) Exam. Hoboken: John Wiley & Sons, 2011.

Cita MLA (8a ed.)

Cottrell, Michelle. Guide to the LEED AP Operations and Maintenance (O+M) Exam. John Wiley & Sons, 2011.