Continued operation of long range aid to navigation (LORAN) stations : agreement between the United States of America and the Philippines, extending the agreement of November 3, and December 15, 1975 effected by exchange of notes dated at Manila July 29 and October 28, 1976. (Dept. of State : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1977)