APA
(1964). Inservice mathematics education: promising practices for elementary and secondary school teachers. Washington, USA: U.S. Government Printing Office.
Chicago
1964. Inservice mathematics education: promising practices for elementary and secondary school teachers. Washington, USA: U.S. Government Printing Office.
Harvard
(1964). Inservice mathematics education: promising practices for elementary and secondary school teachers. Washington, USA: U.S. Government Printing Office.
MLA
Inservice mathematics education: promising practices for elementary and secondary school teachers. Washington, USA: U.S. Government Printing Office. 1964.
