APA (7th ed.) Citation

Loeb, E. M., & Heine-Geldern, R. (1972). Sumatra, its history and people. Oxford University Press.

Chicago Style (17th ed.) Citation

Loeb, Edwin M., and Robert Heine-Geldern. Sumatra, Its History and People. Kuala Lumpur: Oxford University Press, 1972.

MLA (8th ed.) Citation

Loeb, Edwin M., and Robert Heine-Geldern. Sumatra, Its History and People. Oxford University Press, 1972.