Amendments to the Navigation laws of 1911 :
first supplement /
Dept. of Commerce and Labor, Bureau of Navigation.

APA Citation

United States., United States. Department of Commerce and Labor. Bureau of Navigation. (1912). Amendments to the Navigation laws of 1911: first supplement. Washington: Dept. of Commerce and Labor, Bureau of Navigation.

MLA Citation

United States, and United States. Department of Commerce and Labor. Bureau of Navigation. Amendments to the Navigation Laws of 1911: First Supplement. Washington: Dept. of Commerce and Labor, Bureau of Navigation, 1912.

Warning: These citations may not always be complete (especially for serials).