APA (7th ed.) Citation

Blyth, F. G. H., & De Freitas, M. H. (1984). A geology for engineers (7th ed.). E. Arnold.

Chicago Style (17th ed.) Citation

Blyth, F. G. H., and M. H. De Freitas. A Geology for Engineers. 7th ed. London: E. Arnold, 1984.

MLA (9th ed.) Citation

Blyth, F. G. H., and M. H. De Freitas. A Geology for Engineers. 7th ed. E. Arnold, 1984.