APA
Sully J., . (1919). Studies of childhood. London: Longmans green & Co.
Chicago
Sully James, . 1919. Studies of childhood. London: Longmans green & Co.
Harvard
Sully J., . (1919). Studies of childhood. London: Longmans green & Co.
MLA
Sully James, . Studies of childhood. London: Longmans green & Co. 1919.