Dyfyniad APA

(1989). Student's To Structural Design/Lavan,SA, Fletcher,BG. Butterwoths.

Dyfyniad Arddull Chicago

Student's To Structural Design/Lavan,SA, Fletcher,BG. Butterwoths, 1989.

Dyfyniad MLA

Student's To Structural Design/Lavan,SA, Fletcher,BG. Butterwoths, 1989.

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