Problems of specialised helicopter operations, 9 February 1977
Subtitle: (papers) presented (to a conference) at the Royal Aeronautical Society ...
Contributors: Royal Aeronautical Society.
Publisher: The Society
Published: 1977
Place of publication: London (4 Hamilton Place, W1V 0BQ)
Language: eng
Number of pages: 69
Subjects: Helicopters -- Congresses.