APA

Nieland R. A., Thuronyi G. F., Telephone Pioneers of America & Library of Congress. (1994). Answering the call: the Telephone Pioneer talking-book machine-repair program, 1960-1993. Washington, D.C: National Library Service for the Blind and Physically Handicapped, Library of Congress.

Chicago

Nieland Ruth A, Thuronyi George F, Telephone Pioneers of America and Library of Congress. 1994. Answering the call: the Telephone Pioneer talking-book machine-repair program, 1960-1993. Washington, D.C: National Library Service for the Blind and Physically Handicapped, Library of Congress.

Harvard

Nieland R. A., Thuronyi G. F., Telephone Pioneers of America and Library of Congress. (1994). Answering the call: the Telephone Pioneer talking-book machine-repair program, 1960-1993. Washington, D.C: National Library Service for the Blind and Physically Handicapped, Library of Congress.

MLA

Nieland Ruth A, Thuronyi George F, Telephone Pioneers of America and Library of Congress. Answering the call: the Telephone Pioneer talking-book machine-repair program, 1960-1993. Washington, D.C: National Library Service for the Blind and Physically Handicapped, Library of Congress. 1994.