APA (7th ed.) Citation

Courthéoux, J. (1969). Classification of economic activities: An essay on the three-sector theory. International Federation for Housing and Planning.

Chicago Style (17th ed.) Citation

Courthéoux, Jean-Paul. Classification of Economic Activities: An Essay on the Three-sector Theory. [The Hague: International Federation for Housing and Planning, 1969.

MLA (8th ed.) Citation

Courthéoux, Jean-Paul. Classification of Economic Activities: An Essay on the Three-sector Theory. International Federation for Housing and Planning, 1969.