APA (7th ed.) Citation

McCandliss, B., & Watson, A. (1982). Problemoids, math challenge: Problemoids, math mentor, level 5. Trillium Press.

Chicago Style (17th ed.) Citation

McCandliss, Bill, and Albert Watson. Problemoids, Math Challenge: Problemoids, Math Mentor, Level 5. New York: Trillium Press, 1982.

MLA (9th ed.) Citation

McCandliss, Bill, and Albert Watson. Problemoids, Math Challenge: Problemoids, Math Mentor, Level 5. Trillium Press, 1982.