Microcopying methods
Verry, H.R.
Microcopying methods H.R. Verry ; revised by Gordon H. Wright - 2nd ed. - London The Focal Press 1967 - 183.; 25cm.- - The Focal library .
686.43 / VER
Microcopying methods H.R. Verry ; revised by Gordon H. Wright - 2nd ed. - London The Focal Press 1967 - 183.; 25cm.- - The Focal library .
686.43 / VER