TY - BOOK ID - 135365974 TI - NBS 30/60 megahertz noise measurement system operation and service manual AU - Counas, George J. AU - Bremer, Thomas H. AU - United States. PY - 1981 PB - Gaithersburg, MD : U.S. Dept. of Commerce, National Institute of Standards and Technology, DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:135365974 AB - ER -