TY - BOOK ID - 135274694 TI - Spherical trigonometry for the use of colleges and schools AU - Todhunter, Isaac AU - Leathem, J. G. PY - 1943 PB - London Macmillan DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:135274694 AB - ER -