Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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