Dyfyniad APA

Vaizey, W. (1928). Creatures that swim. London: Black.

Dyfyniad Arddull Chicago

Vaizey, Winifred. Creatures That Swim. London: Black, 1928.

Dyfyniad MLA

Vaizey, Winifred. Creatures That Swim. London: Black, 1928.

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