APA
Mitchell Elmer D, Mason Bernard S, . (1934). Theroy of play. New York, USA: A S Barnes and Company.
Chicago
Mitchell Elmer D, Mason Bernard S, . 1934. Theroy of play. New York, USA: A S Barnes and Company.
Harvard
Mitchell Elmer D, Mason Bernard S, . (1934). Theroy of play. New York, USA: A S Barnes and Company.
MLA
Mitchell Elmer D, Mason Bernard S, . Theroy of play. New York, USA: A S Barnes and Company. 1934.
