Report of the third Air navigation conference, Montreal, 18 September- 23 October 1956 ...
Series: Doc -- 7730, AN-Conf/3
Publisher: International civil aviation organization
Published: 1956
Place of publication: Montreal
Language: eng
Notes: Cover title.

"Approved by the Third Air Navigation Conference and issued by authority of the Secretary General."

Supplements 1-4 ([13] p.) inserted.