Franklin

MLA

Piper, William Guy. A Survey of the Commercial Explosive Industry In the United States. .

APA

Piper, W. Guy. A survey of the commercial explosive industry in the United States. .

Chicago

Piper, William Guy. A Survey of the Commercial Explosive Industry In the United States. Thesis (M.B.A. in Industrial Management)--Graduate School of Arts and Sciences, University of Pennsylvania, 1947..