Third industrial directory of Pennsylvania, 1919
Publisher: J. L. L. Kuhn, printer to the commonwealth
Published: 1920
Place of publication: Harrisburg, Pa
Language: eng
Number of pages: 1212
Notes: At head of title: Department of labor and industry. Clifford B. Connelley, commissioner.

The First and Second industrial directory of Pennsylvania, published in 1914 and 1916, respectively, were issued by the Bureau of statistics and information, Department of labor and industry.