TY - BOOK ID - 1216523 TI - Astrophysical concepts PY - 1973 SN - 0471358207 PB - New York (N.Y.) : Wiley, DB - UniCat KW - Astrophysics KW - 521.03 KW - Astronomical physics KW - Astronomy KW - Cosmic physics KW - Physics KW - Theoretical astronomy. Celestial mechanics--?.03 KW - Astrophysics. KW - 521.03 Theoretical astronomy. Celestial mechanics--?.03 KW - Astrophysique. UR - https://www.unicat.be/uniCat?func=search&query=sysid:1216523 AB - ER -