Dyfyniad APA

Harding, J. P., & Tebble, N. (1963). Speciation in the sea. Systematics association.

Dyfyniad Arddull Chicago

Harding, J. P., and Norman Tebble. Speciation in the Sea. London: Systematics association, 1963.

Dyfyniad MLA

Harding, J. P., and Norman Tebble. Speciation in the Sea. Systematics association, 1963.

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