APA Citation

Heyerdahl, T., & Crampton, P. (1971). The Ra expeditions. Garden City, N.Y.: Doubleday.

Chicago Style Citation

Heyerdahl, Thor,, and Patricia Crampton. The Ra Expeditions. Garden City, N.Y.: Doubleday, 1971.

MLA Citation

Heyerdahl, Thor,, and Patricia Crampton. The Ra Expeditions. Garden City, N.Y.: Doubleday, 1971.

Warning: These citations may not always be 100% accurate.