APA (7th ed.) Citation

Axelson, E. (1973). Congo to Cape: Early Portuguese explorers. Faber.

Chicago Style (17th ed.) Citation

Axelson, Eric. Congo to Cape: Early Portuguese Explorers. London: Faber, 1973.

MLA (8th ed.) Citation

Axelson, Eric. Congo to Cape: Early Portuguese Explorers. Faber, 1973.