Dyfyniad APA

(1966). English for Today, Book Four: Our Changing World. New York: McGraw-Hill.

Dyfyniad Arddull Chicago

English for Today, Book Four: Our Changing World. New York: McGraw-Hill, 1966.

Dyfyniad MLA

English for Today, Book Four: Our Changing World. New York: McGraw-Hill, 1966.

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