Citazione Stile APA (7a Edizione)

.Parker, S. P. (1981). Encyclopedia of Energy (second edition.). McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

.Parker, Sybil P. Encyclopedia of Energy. second edition. New York: McGraw-Hill, 1981.

Citatione MLA (9a ed.)

.Parker, Sybil P. Encyclopedia of Energy. second edition. McGraw-Hill, 1981.