APA (7th ed.) Citation

Ager, D. V. (1980). The Geology of Europe. McGRAW-HILL Book Company.

Chicago Style (17th ed.) Citation

Ager, Derek Victor. The Geology of Europe. London [etc.]: McGRAW-HILL Book Company, 1980.

MLA (9th ed.) Citation

Ager, Derek Victor. The Geology of Europe. McGRAW-HILL Book Company, 1980.