Hawken, William R.
Copying methods manual / William R. Hawken. - Chicago : Library Technology Program, American Library Association, 1966. - xv, 375 p. : ill., facsims., music. - LTP publications ; no. 11 .
Copying processes.
Copying methods manual / William R. Hawken. - Chicago : Library Technology Program, American Library Association, 1966. - xv, 375 p. : ill., facsims., music. - LTP publications ; no. 11 .
Copying processes.