Gaya APA

Alkin, M, C., Association, T, A, E, R. (1992). Encyclopedia of Educational Research Volume 4 (SCAL to YEAR) (Sixth Edition). New York: Macmillan Publishing Company.

Gaya MLA

Alkin, Marvin, C.., Association, The, American, Educational, Research. "Encyclopedia of Educational Research Volume 4 (SCAL to YEAR)". Sixth Edition New York: Macmillan Publishing Company, 1992. Referensi.