APA (7th ed.) Citation

Selsam, M. E., & Line, L. (1977). Land of the giant tortoise: The story of the Galapagos. Four Winds Press.

Chicago Style (17th ed.) Citation

Selsam, Millicent Ellis, and Les Line. Land of the Giant Tortoise: The Story of the Galapagos. New York: Four Winds Press, 1977.

MLA (9th ed.) Citation

Selsam, Millicent Ellis, and Les Line. Land of the Giant Tortoise: The Story of the Galapagos. Four Winds Press, 1977.