APA (7th ed.) Citation

Leftwich, R. H. (1972). Elementary analytics of a market system. General Learning Press.

Chicago Style (17th ed.) Citation

Leftwich, Richard H. Elementary Analytics of a Market System. Morristown, NY: General Learning Press, 1972.

MLA (9th ed.) Citation

Leftwich, Richard H. Elementary Analytics of a Market System. General Learning Press, 1972.