TY - BOOK ID - 145340347 TI - Essentials of astronomy AU - Motz, Lloyd AU - Duveen, Anneta PY - 1977 PB - New York : Columbia University Press, DB - UniCat KW - ASTRONOMY UR - https://www.unicat.be/uniCat?func=search&query=sysid:145340347 AB - ER -