APA

Schumpeter J. A., . (1939). Business cycles: a theoretical, historial, and statiscal analysis of the capitalist process. New York: McGraw-Hill Book.

Chicago

Schumpeter Joseph A, . 1939. Business cycles: a theoretical, historial, and statiscal analysis of the capitalist process. New York: McGraw-Hill Book.

Harvard

Schumpeter J. A., . (1939). Business cycles: a theoretical, historial, and statiscal analysis of the capitalist process. New York: McGraw-Hill Book.

MLA

Schumpeter Joseph A, . Business cycles: a theoretical, historial, and statiscal analysis of the capitalist process. New York: McGraw-Hill Book. 1939.