Cita APA (7a ed.)

Heise, U. K. Extinction: Ursula K. Heise. Keywords for environmental studies.([2016]).

Cita Chicago Style (17a ed.)

Heise, Ursula K. "Extinction: Ursula K. Heise." Keywords for Environmental Studies.([2016]) .

Cita MLA (8a ed.)

Heise, Ursula K. "Extinction: Ursula K. Heise." Keywords for Environmental Studies.([2016]), .