Παραπομπή σε μορφή APA (7η εκδ.)

Walker, G. (1994). The amplification requirements of persons with conductive and mixed (conductive & sensori-neural) hearing losses. [publisher not identified].

Παραπομπή σε μορφή Chicago (17η εκδ.)

Walker, Gary. The Amplification Requirements of Persons with Conductive and Mixed (conductive & Sensori-neural) Hearing Losses. [Place of publication not identified]: [publisher not identified], 1994.

Παραπομπή σε μορφή MLA (8th εκδ.)

Walker, Gary. The Amplification Requirements of Persons with Conductive and Mixed (conductive & Sensori-neural) Hearing Losses. [publisher not identified], 1994.