Keller, A. C. (1937). Direct recording and reproducing materials for disk recording. Bell telephone system B-998.
Citación estilo ChicagoKeller, A. C. "Direct Recording and Reproducing Materials for Disk Recording." Bell Telephone System B-998 1937.
Cita MLAKeller, A. C. "Direct Recording and Reproducing Materials for Disk Recording." Bell Telephone System B-998 1937.
Warning: These citations may not always be 100% accurate.