Cita APA (7a ed.)

Haffer, J. (1966). On the dispersal of highland birds in tropical South and Central America.

Cita Chicago Style (17a ed.)

Haffer, Jürgen. On the Dispersal of Highland Birds in Tropical South and Central America. 1966.

Cita MLA (8a ed.)

Haffer, Jürgen. On the Dispersal of Highland Birds in Tropical South and Central America. 1966.