Cita APA

B Howard & Howard B Suprague. (1959). Grasslands. American association for the advancment of science.

Citación estilo Chicago

B Howard y Howard B Suprague. Grasslands. American association for the advancment of science, 1959.

Cita MLA

B Howard y Howard B Suprague. Grasslands. American association for the advancment of science, 1959.

Precaución: Estas citas no son 100% exactas.