APA-Zitierstil (7. Ausg.)

Donahue, R. L. (1972). Ethiopia: Taxonomy, cartography and ecology of soils.

Chicago-Zitierstil (17. Ausg.)

Donahue, Roy L. Ethiopia: Taxonomy, Cartography and Ecology of Soils. East Lansing, Mich, 1972.

MLA-Zitierstil (9. Ausg.)

Donahue, Roy L. Ethiopia: Taxonomy, Cartography and Ecology of Soils. 1972.