APA (7th ed.) Citation

Weekly Reader Skills Books, Brown, G. S., Norton, N. S., & Carnicelli, J. (1983). Scale is key to map distance. Weekly Reader Skills Books.

Chicago Style (17th ed.) Citation

Weekly Reader Skills Books, George S. Brown, Nancy S. Norton, and Joseph Carnicelli. Scale Is Key to Map Distance. [U.S.?]: Weekly Reader Skills Books, 1983.

MLA (9th ed.) Citation

Weekly Reader Skills Books, et al. Scale Is Key to Map Distance. Weekly Reader Skills Books, 1983.