Gaya APA

, ., [et.al], I, A, V, A, .. (1989). Observing . New York: New York: Macmillan, 1989.

Gaya MLA

, ., [et.al], I., Arnold,, Virginia, A, .... "Observing". New York: New York: Macmillan, 1989, 1989. Text.