Title: St. Lawrence Seaway
Subtitle: agreements between the United States of America and Canada, amending the agreement of March 9, 1959, as amended, and supplemented, effected by exchange of notes, signed at Washington December 12, and 20, 1991, and exchange of notes, signed at Washington June 15, and 30, 1992.
Subjects: Shipping, Rates and tolls
Places: Saint Lawrence Seaway