00639cam a22002291 4500 1570494 BD-DhUL 20140920192528.0 891007s1914 enka 000 0 eng d (OCoLC)26367482 (OCoLC)ocm26367482 (NNC)1570494 BD-DhUL BD-DhUL NNC 19 535.3 RAE Ramsey, A. S. (Arthur Stanley), 1867-1954. Elementary geometrical optics, by A.S. Ramsey... London, G. Bell & sons, 1914. xi, 173 p. 23 cm. ill. Geometrical optics. AUTH ddc BK 12047 12047 0 0 ddc 0 535_300000000000000_RAE 0 NFIC 21412 DUSL DUSL GEN 2014-09-20 Purchased 535.3 RAE 23615 2014-09-20 1 2014-09-20 BK