Dyfyniad APA

Halstead, B. W. (1965). Poisonous and venomous marine animals of the world. U.S. Govt. Print. Off.

Dyfyniad Arddull Chicago

Halstead, Bruce W. Poisonous and Venomous Marine Animals of the World. Washington, D.C: U.S. Govt. Print. Off, 1965.

Dyfyniad MLA

Halstead, Bruce W. Poisonous and Venomous Marine Animals of the World. U.S. Govt. Print. Off, 1965.

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