TY - BOOK ID - 138156423 TI - Writings AU - Richard of Wallingford AU - North, J. D. PY - 1976 SN - 0198581394 PB - Oxford Clarendon DB - UniCat KW - Astronomy KW - Mathematics KW - Early works to 1800 KW - Early works to 1800 UR - https://www.unicat.be/uniCat?func=search&query=sysid:138156423 AB - ER -