Pennsylvania and its manifold activities
By: prepared by Guy C.  Whidden and Wilfred G. Schoff for the 12th International congress of  navigation; pub. by the Local organizing commission of the Congress.
Contributors: Whidden, Guy Carleton, 1868-; Schoff, Wilfred Harvey, 1874-1932
Publisher: [Printed by the Beck engraving co.]
Published: 1912
Place of publication: Philadelphia
Language: eng
Number of pages: 287
Subjects: Industries -- Pennsylvania; Transportation -- Pennsylvania; Education -- Pennsylvania; Pennsylvania -- Economic conditions
Notes: Title page missing.