Dyfyniad APA

Heiser, V. G. (2011). Newcomers to the tropics. Bulletin of the American Historical Collection.

Dyfyniad Arddull Chicago

Heiser, Victor G. "Newcomers to the Tropics." Bulletin of the American Historical Collection 2011.

Dyfyniad MLA

Heiser, Victor G. "Newcomers to the Tropics." Bulletin of the American Historical Collection, 2011.

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