APA (7th ed.) Citation

Lombardy, W., Marshall, B., & Schnell, J. (1977). Chess for children, step by step: A new, easy way to learn the game. Little, Brown.

Chicago Style (17th ed.) Citation

Lombardy, William, Bette Marshall, and John Schnell. Chess for Children, Step by Step: A New, Easy Way to Learn the Game. Boston: Little, Brown, 1977.

MLA (9th ed.) Citation

Lombardy, William, et al. Chess for Children, Step by Step: A New, Easy Way to Learn the Game. Little, Brown, 1977.