Ezra, D. (1980). Coal and Energy (2nd Ed.). Ernest Benn.
Chicago Edition CitationEzra, Derek. Coal and Energy. 2nd Ed. London: Ernest Benn, 1980.
MLA Edition CitationEzra, Derek. Coal and Energy. 2nd Ed. Ernest Benn, 1980.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.