Cita APA

Hempel, E. H. (1939). The economics of chemical industries. Wiley.

Citación estilo Chicago

Hempel, Edward Henry. The Economics of Chemical Industries. New York: Wiley, 1939.

Cita MLA

Hempel, Edward Henry. The Economics of Chemical Industries. Wiley, 1939.

Warning: These citations may not always be 100% accurate.