Dyfyniad APA

Krugman, S., & Ward, R. (1968). Infectious diseases of children (4th ed.). Mosby.

Dyfyniad Arddull Chicago

Krugman, Saul, and Robert Ward. Infectious Diseases of Children. 4th ed. Saint Louis: Mosby, 1968.

Dyfyniad MLA

Krugman, Saul, and Robert Ward. Infectious Diseases of Children. 4th ed. Mosby, 1968.

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