APA (7th ed.) Zitazioa
Cottrell, M. (2011). Guide to the LEED AP Operations and Maintenance (O+M) Exam. Wiley.
Chicago Style (17th ed.) Zitazioa
Cottrell, Michelle. Guide to the LEED AP Operations and Maintenance (O+M) Exam. Hoboken, N.J.: Wiley, 2011.
MLA (9th ed.) Zitazioa
Cottrell, Michelle. Guide to the LEED AP Operations and Maintenance (O+M) Exam. Wiley, 2011.
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