Παραπομπή σε μορφή APA (7η εκδ.)

Butler, J., & Rotberg, J. (1977). The black homelands of South Africa: The political and economic development of Bophuthatswana and Kwazulu. University of California Press Publishers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Butler, Jeffrey, και John Rotberg. The Black Homelands of South Africa: The Political and Economic Development of Bophuthatswana and Kwazulu. Berkerly: University of California Press Publishers, 1977.

Παραπομπή σε μορφή MLA (9th εκδ.)

Butler, Jeffrey, και John Rotberg. The Black Homelands of South Africa: The Political and Economic Development of Bophuthatswana and Kwazulu. University of California Press Publishers, 1977.