Shepherd, W., & Shepherd, D. W. (1998). Energy studies. Imperial College Press.
Chicago Edition CitationShepherd, W., and D. W. Shepherd. Energy Studies. Singapore ; River Edge, NJ: Imperial College Press, 1998.
MLA Edition CitationShepherd, W., and D. W. Shepherd. Energy Studies. Imperial College Press, 1998.
Warning: These citations may not always be 100% accurate.