Gaya APA

lang, H, J., DeCoursey, M. (1983). Profitability Accounting and Bidding strategy for engineering and contruction management . Homewood: Van Nostrand Reinhold Company.

Gaya MLA

lang, Hans, J., DeCoursey, Michael. "Profitability Accounting and Bidding strategy for engineering and contruction management". Homewood: Van Nostrand Reinhold Company, 1983. Text.