Cita APA

Watkins, J. S., & Bottino, M. L. M. (1975). Our geological environment. W B Saunders.

Chicago Edition Citation

Watkins, Joel S., i Michael L Morisawa Bottino. Our Geological Environment. Philadelphia: W B Saunders, 1975.

Cita MLA

Watkins, Joel S., i Michael L Morisawa Bottino. Our Geological Environment. W B Saunders, 1975.