APA
Wrinkle W. L., . (1956). Improving marking and reporting practices in elementary and secondary schools. New York: Rinehart & Company.
Chicago
Wrinkle William L, . 1956. Improving marking and reporting practices in elementary and secondary schools. New York: Rinehart & Company.
Harvard
Wrinkle W. L., . (1956). Improving marking and reporting practices in elementary and secondary schools. New York: Rinehart & Company.
MLA
Wrinkle William L, . Improving marking and reporting practices in elementary and secondary schools. New York: Rinehart & Company. 1956.