Bhalla, A. S. (1970). Economic efficiency, capital-intensity and capital-labour substitution in retail trade. Economic Growth Center, Yale University.
Chicago-referens (17:e uppl.)Bhalla, A S. Economic Efficiency, Capital-intensity and Capital-labour Substitution in Retail Trade. New Haven, Conn: Economic Growth Center, Yale University, 1970.
MLA-referens (9:e uppl.)Bhalla, A S. Economic Efficiency, Capital-intensity and Capital-labour Substitution in Retail Trade. Economic Growth Center, Yale University, 1970.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.