APA Citation

Churchil, W. A. (1967). Watermaks in paper (3a ed.). [S.l.]: Hertzberger.

Chicago Style Citation

Churchil, W. A. Watermaks in Paper. 3a ed. [S.l.]: Hertzberger, 1967.

MLA Citation

Churchil, W. A. Watermaks in Paper. 3a ed. [S.l.]: Hertzberger, 1967.

Warning: These citations may not always be 100% accurate.