The photostat in reference work
By: by Charles F. McCombs ...
Contributors: Epstean Collection of Books on Photography and Its Applications in the Graphic Arts (Columbia University. Rare Book and Manuscript Library)
Publisher: Public Library
Published: 1925
Place of publication: New York
Language: eng
Subjects: Photostat; Reference services (Libraries)
Notes: Plates printed on both sides.

"References on the photostat": p. 7-9.