APA aipamena

Hutton, J. (1972). Urban challenge in East Africa. East African Pub. House.

Chicago Style aipamena

Hutton, John. Urban Challenge in East Africa. [Nairobi]: East African Pub. House, 1972.

MLA aipamena

Hutton, John. Urban Challenge in East Africa. East African Pub. House, 1972.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.