00501nam a22001697a 4500 230509b |||||||| |||| 00| 0 eng d National Science Library National Science Library 778.14(7)(058.7) K2 Brinkley Cosby Directory of library photoduplication services in the United States, Canada and Mexico Chicago: 1962 46p. Photography Xerox Photostat udc REF 27906 27906 0 0 udc 0 778147058_K2 0 REF 41583 NSL NSL GF/RK-22/C-2/R-4 1964-12-16 0 778.14(7)(058) K2 10798 2023-05-09 00:00:00 1964-12-16 REF