APA
Trapp M. A., . (1990). The story of the Trapp family Singers. New York ; London ; Toronto: Image Books ; Doubleday.
Chicago
Trapp Maria Augusta, . 1990. The story of the Trapp family Singers. New York ; London ; Toronto: Image Books ; Doubleday.
Harvard
Trapp M. A., . (1990). The story of the Trapp family Singers. New York ; London ; Toronto: Image Books ; Doubleday.
MLA
Trapp Maria Augusta, . The story of the Trapp family Singers. New York ; London ; Toronto: Image Books ; Doubleday. 1990.
