Watkins, A. Early British trackways, moats, mounds, camps, and sites.
Citazione stile Chigago Style (17a edizione)Watkins, Alfred. Early British Trackways, Moats, Mounds, Camps, and Sites.
Citatione MLA (9a ed.)Watkins, Alfred. Early British Trackways, Moats, Mounds, Camps, and Sites.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.