TY - BOOK ID - 128989872 TI - A treatise on spherical astronomy PY - 1908 PB - Cambridge : University Press, DB - UniCat KW - Spherical astronomy. KW - Spherical astronomy. KW - Sterrenkunde. UR - https://www.unicat.be/uniCat?func=search&query=sysid:128989872 AB - ER -