Gaya APA

Acheson, K, A., Gall, M, D. (1980). Techniques In The Clinical Supervision Of Teachers (--). New York: Longman.

Gaya MLA

Acheson, Keith, A.., Gall, Meredith, Damien. "Techniques In The Clinical Supervision Of Teachers". -- New York: Longman, 1980. Text.