APA (7th ed.) Citation

Ball, J. E., Ham, R. B., & Ham, D. B. (2012). Practical problems in mathematics for masons (3rd ed.). Delmar.

Chicago Style (17th ed.) Citation

Ball, John E., Robert B. Ham, and Donna B. Ham. Practical Problems in Mathematics for Masons. 3rd ed. Clifton Park, NY: Delmar, 2012.

MLA (8th ed.) Citation

Ball, John E., et al. Practical Problems in Mathematics for Masons. 3rd ed. Delmar, 2012.