Gaya APA

Butler, F, C. (1972). Instructional System Development For Vocational And Technical Training (Ed. Ke - 2). Englewood Cliffs, NJ: Educational Technology Publications.

Gaya MLA

Butler, F, Coit. "Instructional System Development For Vocational And Technical Training". Ed. Ke - 2 Englewood Cliffs, NJ: Educational Technology Publications, 1972. Text.