School Mathematics Study Group. (1968). Puzzle problems and games project: Final report. Leland Stanford Junior University.
Цитирование в стиле Чикаго (17-е изд.)School Mathematics Study Group. Puzzle Problems and Games Project: Final Report. Stanford, CA: Leland Stanford Junior University, 1968.
Цитирование MLA (9-е изд.)School Mathematics Study Group. Puzzle Problems and Games Project: Final Report. Leland Stanford Junior University, 1968.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.