Cambridge Philosophical Society. (1935). Biological reviews. London: Cambridge University Press.
Dyfyniad Arddull ChicagoCambridge Philosophical Society. Biological Reviews. London: Cambridge University Press, 1935.
Dyfyniad MLACambridge Philosophical Society. Biological Reviews. London: Cambridge University Press, 1935.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.