Scientific cooperation [electronic resource] : balloon flights : agreement between the United States of America and Australia extending the agreement of February 16, 2006, effected by exchange of notes at Canberra, August 26, 2011 and April 24, 2012.
Agreement between the United States of America and Australia extending the agreement of February 16, 2006, effected by exchange of notes at Canberra, August 26, 2011 and April 24, 2012