Dyfyniad APA

(1967). McGraw-Hill yearbook of science and technology. McGraw-Hill Book Co.

Dyfyniad Arddull Chicago

McGraw-Hill Yearbook of Science and Technology. New York: McGraw-Hill Book Co, 1967.

Dyfyniad MLA

McGraw-Hill Yearbook of Science and Technology. McGraw-Hill Book Co, 1967.

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