Dyfyniad APA

T E Gaedel. (1996). Design for environment. Upper Saddle River, New Jersey: Prentice-Hall.

Dyfyniad Arddull Chicago

T E Gaedel. Design for Environment. Upper Saddle River, New Jersey: Prentice-Hall, 1996.

Dyfyniad MLA

T E Gaedel. Design for Environment. Upper Saddle River, New Jersey: Prentice-Hall, 1996.

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