A selective roll-to-roll printer for producing duplicate microfilm copies.
[By] James N. Strohlein and Thomas C. Bagg.

APA Citation

Strohlein, J. N., Bagg, T. C.. (1970). A selective roll-to-roll printer for producing duplicate microfilm copies. Washington: for sale by the Supt. of Docs., U.S. Govt. Print. Off..

MLA Citation

Strohlein, James N, and Thomas C. Bagg. A Selective Roll-to-roll Printer for Producing Duplicate Microfilm Copies. Washington: for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1970.