APA
Graham R. G., American Management Association (New York) & Gray C. F. (1969). Business games handbook. New York: AMA.
Chicago
Graham Robert G, American Management Association (New York) and Gray Clifford F. 1969. Business games handbook. New York: AMA.
Harvard
Graham R. G., American Management Association (New York) and Gray C. F. (1969). Business games handbook. New York: AMA.
MLA
Graham Robert G, American Management Association (New York) and Gray Clifford F. Business games handbook. New York: AMA. 1969.
