APA-referens (7:e uppl.)

Porter, R. S. (1974). The making of the science of geology in Britain 1660-1815. University of Cambridge.

Chicago-referens (17:e uppl.)

Porter, Roy Sydney. The Making of the Science of Geology in Britain 1660-1815. University of Cambridge, 1974.

MLA-referens (8:e uppl.)

Porter, Roy Sydney. The Making of the Science of Geology in Britain 1660-1815. University of Cambridge, 1974.