https://catalogue-scientifique.canada.ca/record=3618245~S6*frc
Rechercher Bourke, P.M. Austin; Rechercher Bourke, P. A; Rechercher Pieslak, Z; Rechercher Lillywhite, J.W; Rechercher Turner, J. A
Secretariat of the World Meteorological Organization, 1961
Publication gouvernementale