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Dyfyniad Arddull ChicagoCottrell, Michelle. Guide to the LEED AP Building Design and Construction (ID + C) Exam. Hoboken, NJ: Wiley, 2012.
Dyfyniad MLACottrell, Michelle. Guide to the LEED AP Building Design and Construction (ID + C) Exam. Wiley, 2012.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.