TY - BOOK ID - 139119811 TI - Sir Isaac Newton's mathematical principles of natural philosophy and his system of the world. AU - Newton, Isaac AU - Motte, Andrew AU - Cajori, Florian PY - 1947 PB - Berkeley University of California press DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:139119811 AB - ER -