O'Callaghan, P. W. (1993). Energy management. McGraw-Hill Book Co..
Chicago Edition CitationO'Callaghan, Paul W. Energy Management. London ; New York: McGraw-Hill Book Co., 1993.
MLA Edition CitationO'Callaghan, Paul W. Energy Management. McGraw-Hill Book Co., 1993.
Warning: These citations may not always be 100% accurate.