APA (7th ed.) Citation

Melton, J. G., Clark, J., & Kelly, A. A. (1991). New age almanac. Visible Ink.

Chicago Style (17th ed.) Citation

Melton, J. Gordon, Jerome Clark, and Aidan A. Kelly. New Age Almanac. New York: Visible Ink, 1991.

MLA (9th ed.) Citation

Melton, J. Gordon, et al. New Age Almanac. Visible Ink, 1991.