APA (7th ed.) Citation

Williams, M., & Somerwill, H. (1982). 40 math games to make and play: The early years. Macmillan Education.

Chicago Style (17th ed.) Citation

Williams, Margaret, and Heather Somerwill. 40 Math Games to Make and Play: The Early Years. Hampshire: Macmillan Education, 1982.

MLA (9th ed.) Citation

Williams, Margaret, and Heather Somerwill. 40 Math Games to Make and Play: The Early Years. Macmillan Education, 1982.