Author
Philadelphia Real Estate Board
3
Associated Business Clubs
2
Business Volunteers for the Arts (Philadelphia, Pa.)
2
Arts & Business Council of the Greater Philadelphia Chamber of Commerce
1
Bensalem Chamber of Commerce
1
Business Historical Society
1
Business and Industry in Delaware Valley, U.S.A
1
Chamber of Commerce of the United States of America
1
Doylestown Business & Community Alliance (Doylestown, Pa.)
1
Doylestown Community Association (Doylestown, Pa.)
1
Green America,
1
Harvard University. Graduate School of Business Administration
1
Innovation Philadelphia
1
Kirby, Louis B.
1
M-Dash Publishing
1
National Trade Acceptance Bureau, Inc
1
Northeast Philadelphia Chamber of Commerce
1
Pennsylvania Public Television Network
1
Pennsylvania Railroad Technical & Historical Society
1
Pennsylvania Research & Information Association
1
Philadelphia Board of Realtors
1
Philadelphia Row Home Inc
1
Pittsburgh High Technology Council (Pa.)
1
Spanish Merchants Association of Philadelphia
1
University of California, Los Angeles. Mexican-American Study Project
1