Boundary waters, pilotage services : agreement between the United States of America and Canada, amending the memorandum of arrangements to the agreement of August 23, 1978 and March 29, 1979, effected by exchange of notes signed at Washington October 15, 1992 and June 17, 1993.
Washington, D.C. : Dept. of State : For sale by the Supt. of Docs., U.S. G.P.O., [1996?]