The Tape Cassette System: Proposed by the Library of Congress

Korb Alfred “Tape Talking Book System for the Blind.” Paper read at the October 1960 annual meeting of the Audio Engineering Society, New York. Preprint No. 161.

Application Study, Magnetic Tape Reproducers/Recorders for Talking Books. Morton Grove, Illinois: Cook Research Laboratories, 1959. Report F-PR 172-1 (Contract B59-DC-6).

Himmelstein Sidney “Tape Duplicating Systems for Talking Book Program,” J. Audio Eng. Soc., Vol. 9, No. 2 (April 1961), pp. 102–106.

Levin Herman “Tape Recorder Designed for the Blind.” Paper read at the October 1960 annual meeting of the Audio Engineering Society, New York. Preprint No. 162.