Cita APA (7th ed.)
Sorsbie, R. F. (1938). Geology for engineers. Bell.
Cita Chicago (17th ed.)
Sorsbie, Robert Fox. Geology for Engineers. London: Bell, 1938.
Cita MLA (9th ed.)
Sorsbie, Robert Fox. Geology for Engineers. Bell, 1938.
Atenció: Aquestes cites poden no estar 100% correctes.