Philadelphia Specialty Mfg. Assoc. - 1930s-1940s - Philadelphia, Pennsylvania
Yann Saunders of the Cadillac-LaSalle Club has a poor photo of a 1940 Cadillac 8-door airport bus built by the Philadelphia Specialty Mfg. Assoc. for American Airlines.
The Cadillac LaSalle Club Database
The Professional Car (Quarterly Journal of the Professional Car Society)
Gregg D. Merksamer - Professional Cars: Ambulances, Funeral Cars and Flower Cars
Thomas A. McPherson - American Funeral Cars & Ambulances Since 1900
Carriage Museum of America - Horse-Drawn Funeral Vehicles: 19th Century Funerals
Carriage Museum of America - Horse Drawn - Military, Civilian, Veterinary - Ambulances
Gunter-Michael Koch - Bestattungswagen im Wandel der Zeit
Walt McCall & Tom McPherson - Classic American Ambulances 1900-1979: Photo Archive
Walt McCall & Tom McPherson - Classic American Funeral Vehicles 1900-1980 Photo Archive
Walter M. P. McCall - The American Ambulance 1900-2002
Walter M.P. McCall - American Funeral Vehicles 1883-2003
Michael L. Bromley & Tom Mazza - Stretching It: The Story of the Limousine
Richard J. Conjalka - Classic American Limousines: 1955 Through 2000 Photo Archive
Richard J. Conjalka - Stretch Limousines 1928-2001 Photo Archive
Thomas A. McPherson - Eureka: The Eureka Company: a complete history
Thomas A. McPherson - Superior: The complete history
Thomas A. McPherson - Flxible: The Complete History
Thomas A. McPherson - Miller-Meteor: The Complete History
Robert R. Ebert - Flxible: A History of the Bus and the Company
Hearses - Automobile Quarterly Vol 36 No 3
Marian Suman-Hreblay - Dictionary of World Coachbuilders and Car Stylists
Daniel D. Hutchins - Wheels Across America: Carriage Art & Craftsmanship
Michael Lamm and Dave Holls - A Century of Automotive Style: 100 Years of American Car Design
Nick Georgano - The Beaulieu Encyclopedia of the Automobile: Coachbuilding
Marian Suman-Hreblay - Automobile Manufacturers Worldwide Registry
G.N. Georgano & G. Marshall Naul - The Complete Encyclopedia of Commercial Vehicles
Albert Mroz - Illustrated Encyclopedia of American Trucks & Commercial Vehicles
Beverly Rae Kimes & Henry Austin Clark Jr. - Standard Catalog of American Cars 1805-1942
John Gunnell - Standard Catalog of American Cars, 1946-1975
James M. Flammang & Ron Kowalke - Standard Catalog of American Cars, 1976-1999
