APA (7th ed.) Citation

Walker, J., & Hedison, D. (1986). Viewers are taken on a fantastic voyage to the Galapagos Islands. Encyclopedia Britannica.

Chicago Style (17th ed.) Citation

Walker, John, and David Hedison. Viewers Are Taken on a Fantastic Voyage to the Galapagos Islands. Chicago, IL: Encyclopedia Britannica, 1986.

MLA (9th ed.) Citation

Walker, John, and David Hedison. Viewers Are Taken on a Fantastic Voyage to the Galapagos Islands. Encyclopedia Britannica, 1986.