@COMMENT { BibTex package created from National Library of Australia Catalogue https://catalogue.nla.gov.au } @Book{ nla.cat-vn4055574, author = { Washburn, J. S. and United States. }, title = { Spectrum required for HF broadcasting [microform] / James Washburn ... [et al.] }, publisher = { U.S. Dept. of Commerce, National Telecommunications and Information Administration ; For sale by the National Technical Information Service [Boulder, CO] : Springfield, VA }, pages = { ix, 91 p. : }, year = { 1990 }, type = { Book, Microform }, language = { English }, subjects = { Shortwave radio -- Transmitters and transmission. }, life-dates = { 1990 - }, catalogue-url = { https://nla.gov.au/nla.cat-vn4055574 }, }