1. Regulations for Transportation of Explosives and Other Dangerous Articles. Issued by H. A. Campbell, Agent, 30 Vesey St., New York, 7, N. Y. Bureau for the Safe Transportation of Explosives and Other Dangerous Articles of the Association of American Railroads.
2. Motor Carriers' Explosives and Dangerous Articles Tariff No. 7 Publishing Interstate Commerce Commission Regulations for Transportation of Explosives and Other Dangerous Articles by Motor, Rail and Water. Tariff Bureau of America Trucking Association, F. G. Freund, Agent, 1424 16th St., N. W., Washington, 6, D. C.
3. Official Air Transport Restricted Articles Tariff No. 6, E. F. Johnson, Agent, Air Cargo Inc., National Airport, Washington, D. C.
4. Water Carrier Tariff No. 6, H. A. Campbell, Agent, 30 Vesey St., New York 7, N. Y. Bureau for the Safe Transportation of Explosives and Other Dangerous Articles of the Association of American Railroads.
5. Part I of U. S. Postal Guide, Article 37, Chapter IV (1951).