APA

(1968). Methods of analysing census data on economic activities of the population. New York: United Nations, Department of Economic and Social Affairs.

Chicago

1968. Methods of analysing census data on economic activities of the population. New York: United Nations, Department of Economic and Social Affairs.

Harvard

(1968). Methods of analysing census data on economic activities of the population. New York: United Nations, Department of Economic and Social Affairs.

MLA

Methods of analysing census data on economic activities of the population. New York: United Nations, Department of Economic and Social Affairs. 1968.