Contained within the 4th Edition (1974) of the Atlas of Canada is a map that shows the labour force in manufacturing by place of residence for population centres and complexes in 1961. The main map is accompanied by two smaller maps showing Eastern Ontario and Western Quebec and the Maritimes in greater detail (at a scale of 1:5 000 000). A set of graphs shows the percentage make up of urban / rural, male / female participants in the manufacturing labour forces for Canada, the provinces and the territories for 1961. An extensive supplementary text lists 174 population centres with a labour force over 500 and gives the total for each place as a percentage of the national labour force in manufacturing.