APA Style

Friedman, E., Hasley, ,, W, D. (1986). Collier's encyclopedia 9: with bibliography and index . New York: Macmillan Educational Company.

MLA Style

Friedman, Emanuel., Hasley, ,, William, D. "Collier's encyclopedia 9: with bibliography and index". New York: Macmillan Educational Company, 1986. Perpustakaan KALBIS.