APA (7th ed.) Citation

Welch, G. (1949). North African prelude: The first seven thousand years. W. Morrow.

Chicago Style (17th ed.) Citation

Welch, Galbraith. North African Prelude: The First Seven Thousand Years. New York: W. Morrow, 1949.

MLA (8th ed.) Citation

Welch, Galbraith. North African Prelude: The First Seven Thousand Years. W. Morrow, 1949.