TY - BOOK ID - 126962401 TI - The practice of refraction PY - 1965 SN - 9780700014101 0700014101 PB - London: Churchill, DB - UniCat KW - Eye KW - Eyeglasses KW - Refraction, Ocular UR - https://www.unicat.be/uniCat?func=search&query=sysid:126962401 AB - ER -