Dyfyniad APA

Osbourn, D. (1997). Introduction to building (2nd ed.). Longman.

Dyfyniad Arddull Chicago

Osbourn, Derek. Introduction to Building. 2nd ed. Harlow, Essex: Longman, 1997.

Dyfyniad MLA

Osbourn, Derek. Introduction to Building. 2nd ed. Longman, 1997.

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