APA (7th ed.) Citation

Youngs, J. W. T. (1966). The Heawood map coloring conjecture. Rand Corp..

Chicago Style (17th ed.) Citation

Youngs, John William Theodore. The Heawood Map Coloring Conjecture. Santa Monica, Calif.: Rand Corp., 1966.

MLA (9th ed.) Citation

Youngs, John William Theodore. The Heawood Map Coloring Conjecture. Rand Corp., 1966.