South Africa. Committee for the Investigation of the Injudicious Release of Hearing Aids to the Public of South Africa & South Africa. Dept. of Health. (1970). Report of the Committee for the investigation of the injudicious release of hearing aids to the public of South Africa. Govt. Printer.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)South Africa. Committee for the Investigation of the Injudicious Release of Hearing Aids to the Public of South Africa và South Africa. Dept. of Health. Report of the Committee for the Investigation of the Injudicious Release of Hearing Aids to the Public of South Africa. Pretoria: Govt. Printer, 1970.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)South Africa. Committee for the Investigation of the Injudicious Release of Hearing Aids to the Public of South Africa và South Africa. Dept. of Health. Report of the Committee for the Investigation of the Injudicious Release of Hearing Aids to the Public of South Africa. Govt. Printer, 1970.