Gaya APA
Marks, J, R. et al (1978).
Handbook of Educational Supervision: a guide for the practitioner .
Boston:
Allyn And Bacon, Inc..
Gaya MLA
Marks, James, Robert. et al.
"Handbook of Educational Supervision: a guide for the practitioner".
Boston:
Allyn And Bacon, Inc.,
1978.
Text.