Cita APA (7th ed.)

Graham, R. G., & Gray, C. F. (1969). Business games handbook. American Management Association.

Cita Chicago (17th ed.)

Graham, Robert G., i Clifford F. Gray. Business Games Handbook. [New York]: American Management Association, 1969.

Cita MLA (8th ed.)

Graham, Robert G., i Clifford F. Gray. Business Games Handbook. American Management Association, 1969.