Birch, T. (1964). Maps: Topographical and statistical (2nd ed.). Clarendon Press.
Chicago Style (17th ed.) ZitazioaBirch, T.W. Maps: Topographical and Statistical. 2nd ed. Oxford: Clarendon Press, 1964.
MLA (9th ed.) ZitazioaBirch, T.W. Maps: Topographical and Statistical. 2nd ed. Clarendon Press, 1964.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.