Rules and regulations relating to viruses, serums, toxins and analogous products, and to certain organisms and vectors, effective March 1, 1949.

APA Citation

United States. Bureau of Animal Industry. (1949). Rules and regulations relating to viruses, serums, toxins and analogous products, and to certain organisms and vectors, effective March 1, 1949. Washington: U. S. Govt. Print. Off..

MLA Citation

United States. Bureau of Animal Industry. Rules And Regulations Relating to Viruses, Serums, Toxins And Analogous Products, And to Certain Organisms And Vectors, Effective March 1, 1949. Washington: U. S. Govt. Print. Off., 1949.