Cita APA (7th ed.)

Copper Development Association. (1985). Copper in roofing: Design and installation. Copper Development Association.

Cita Chicago (17th ed.)

Copper Development Association. Copper in Roofing: Design and Installation. Oxford: Copper Development Association, 1985.

Cita MLA (9th ed.)

Copper Development Association. Copper in Roofing: Design and Installation. Copper Development Association, 1985.