Manual of surface weather observations
By: Director General, Central Services Directorate.
Edition: 7th ed. --
Publisher: Environment Canada, Atmospheric Environment
Published: 1977
Place of publication: Ottawa
Language: eng
Subjects: Meteorology -- Observers' manuals
Other titles: MANOBS
Notes: Includes index.

Loose-leaf for updating.

Amendment no. 1 addressed to MANOBS distribution.