00653nam a2200217Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d IIA Library 77 LAU Lau, Ernst 7408 Equidensitometry methods of two dimensional photometry, principles and fields of application Ernest Lau and Wolfgant Krug London The Focal Press 1968 136p. The Focal Library Microdensitometers 7409 NASA Thesaurus Optical Measurements 7410 Photography Krug, Wolfgant 7411 BK 4217 4217 0 0 0 0 BAN KOD GEN 1973-05-10 76.00 0 77/ LAU 4707 2021-11-05 76.00 1973-05-10 BK Rs. 76.00