Dyfyniad APA

Ugural, A. C. (1981). Stresses in plates and shells. New York: McGraw-Hill.

Dyfyniad Arddull Chicago

Ugural, A. C. Stresses in Plates and Shells. New York: McGraw-Hill, 1981.

Dyfyniad MLA

Ugural, A. C. Stresses in Plates and Shells. New York: McGraw-Hill, 1981.

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