Cita APA

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

Citación estilo Chicago

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

Cita MLA

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

Warning: These citations may not always be 100% accurate.