Dyfyniad APA
Hall, F., & Greeno, R. (2017). Building services handbook (9th ed.). Routledge.
Dyfyniad Arddull Chicago
Hall, Fred, and Roger Greeno. Building Services Handbook. 9th ed. New York: Routledge, 2017.
Dyfyniad MLA
Hall, Fred, and Roger Greeno. Building Services Handbook. 9th ed. Routledge, 2017.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.