APA (7th ed.) Citation

Markle, S. (1997). Discovering graph secrets: Experiments, puzzles, and games exploring graphs. Atheneum Books for Young Readers.

Chicago Style (17th ed.) Citation

Markle, Sandra. Discovering Graph Secrets: Experiments, Puzzles, and Games Exploring Graphs. New York, N.Y.: Atheneum Books for Young Readers, 1997.

MLA (9th ed.) Citation

Markle, Sandra. Discovering Graph Secrets: Experiments, Puzzles, and Games Exploring Graphs. Atheneum Books for Young Readers, 1997.