APA (7e ed.) Bronvermelding

Gibson, W., & Wedd, C. B. (1913). The geology of the northern part of the Derbyshire coalfield and bordering tracts. H.M.S.O..

Chicago (17e ed.) Bronvermelding

Gibson, Walcot, en C. B. Wedd. The Geology of the Northern Part of the Derbyshire Coalfield and Bordering Tracts. London: H.M.S.O., 1913.

MLA (8e ed.) Bronvermelding

Gibson, Walcot, en C. B. Wedd. The Geology of the Northern Part of the Derbyshire Coalfield and Bordering Tracts. H.M.S.O., 1913.