Ludlow typefaces :
supplementary specimen pages, September 15, 1931.
APA Citation
Ludlow Typograph Co. (1931). Ludlow typefaces: supplementary specimen pages, September 15, 1931. Chicago: The Company.
MLA Citation
Ludlow Typograph Co. Ludlow Typefaces: Supplementary Specimen Pages, September 15, 1931. Chicago: The Company, 1931.
Warning: These citations may not always be complete (especially for serials).