APA

Roberts A., Andrew Roberts, . (1976). A History of Zambia. London: Heinneman.

Chicago

Roberts Andrew, Andrew Roberts, . 1976. A History of Zambia. London: Heinneman.

Harvard

Roberts A., Andrew Roberts, . (1976). A History of Zambia. London: Heinneman.

MLA

Roberts Andrew, Andrew Roberts, . A History of Zambia. London: Heinneman. 1976.