Ocean station vessel manual
Edition: 4th ed. ...
Series: Its Doc -- 6926-AN/856/4; Doc (International Civil Aviation Organization) -- 6926-AN/856/4
Published: 1961
Place of publication: Montreal?
Language: eng
Number of pages: 35
Notes: Reproduced from typewritten copy.

"This edition incorporates all amendments issued by 1 December 1961 and supersedes all previous editions."