APA (7th ed.) Citation

Martin, B., Archambault, J., & Rand, T. (1987). Knots on a counting rope. H. Holt.

Chicago Style (17th ed.) Citation

Martin, Bill, John Archambault, and Ted Rand. Knots on a Counting Rope. New York: H. Holt, 1987.

MLA (9th ed.) Citation

Martin, Bill, et al. Knots on a Counting Rope. H. Holt, 1987.