Leung, M. W. (1980). An investigation of the relationship between playfulness and television viewing among elementary school children. [publisher not identified].
Chicago Style (17th ed.) CitationLeung, Mary Whiteford. An Investigation of the Relationship Between Playfulness and Television Viewing Among Elementary School Children. [Place of publication not identified]: [publisher not identified], 1980.
MLA (9th ed.) CitationLeung, Mary Whiteford. An Investigation of the Relationship Between Playfulness and Television Viewing Among Elementary School Children. [publisher not identified], 1980.
Warning: These citations may not always be 100% accurate.