Gaya APA

Thompson, A, A., Formby, J, P. (1993). Economics of The Firm : Theory and Practice (Ed.1). United States of America: Arthur A. Thompson, Jr..

Gaya MLA

Thompson, Arthur, A.., Formby, John, P.. "Economics of The Firm : Theory and Practice". Ed.1 United States of America: Arthur A. Thompson, Jr., 1993. Text.