TY - BOOK ID - 133648056 TI - How to use talking pictures in business AU - Metcalfe, Lyne Shackleford AU - Christensen, Harold Gloy PY - 1938 PB - New York, London : Harper & brothers, DB - UniCat KW - Silent films. KW - Films muets UR - https://www.unicat.be/uniCat?func=search&query=sysid:133648056 AB - ER -