TY - BOOK AU - Barcons,X. AU - Fabian,A.C. TI - The X-ray background SN - 0521416515 AV - QB991.C64 X17 1992 U1 - 522/.6863 20 PY - 1992/// CY - Cambridge PB - Cambridge University Press KW - X-ray astronomy KW - Cosmic background radiation KW - X-ray sources, Galactic N1 - Includes bibliographical references UR - http://www.loc.gov/catdir/description/cam026/93200889.html UR - http://www.loc.gov/catdir/toc/cam028/93200889.html ER -