Cita APA (7th ed.)

Volkman, T. A., & Caldwell, I. (1990). Sulawesi: The Celebes. Periplus Editions.

Cita Chicago (17th ed.)

Volkman, Toby Alice, i Ian Caldwell. Sulawesi: The Celebes. Sinagpore: Periplus Editions, 1990.

Cita MLA (9th ed.)

Volkman, Toby Alice, i Ian Caldwell. Sulawesi: The Celebes. Periplus Editions, 1990.