APA
(1965). Digest of educational statistics. Washington, USA: U.S. Government Printing Office.
Chicago
1965. Digest of educational statistics. Washington, USA: U.S. Government Printing Office.
Harvard
(1965). Digest of educational statistics. Washington, USA: U.S. Government Printing Office.
MLA
Digest of educational statistics. Washington, USA: U.S. Government Printing Office. 1965.
