Cita APA (7th ed.)

Boswell, P. G. H. (1929). The geology of the country around Sudbury (Suffolk). H.M.S.O..

Cita Chicago (17th ed.)

Boswell, Percy George Hamnall. The Geology of the Country Around Sudbury (Suffolk). London: H.M.S.O., 1929.

Cita MLA (8th ed.)

Boswell, Percy George Hamnall. The Geology of the Country Around Sudbury (Suffolk). H.M.S.O., 1929.

Atenció: Aquestes cites poden no estar 100% correctes.