Dyfyniad APA

Bennett, D., & Steinkamp, J. R. (1995). Skyscrapers: The world's tallest buildings and how they work. Aurum Press.

Dyfyniad Arddull Chicago

Bennett, David, and James R. Steinkamp. Skyscrapers: The World's Tallest Buildings and How They Work. London: Aurum Press, 1995.

Dyfyniad MLA

Bennett, David, and James R. Steinkamp. Skyscrapers: The World's Tallest Buildings and How They Work. Aurum Press, 1995.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.