APA (7th ed.) Citation

Petters, S. W. (1991). Regional Geology of Africa. Springer. https://doi.org/10.1007/BFb0020577

Chicago Style (17th ed.) Citation

Petters, Sunday W. Regional Geology of Africa. Berlin [u.a.]: Springer, 1991. https://doi.org/10.1007/BFb0020577.

MLA (9th ed.) Citation

Petters, Sunday W. Regional Geology of Africa. Springer, 1991. https://doi.org/10.1007/BFb0020577.