APA (7th ed.) Citation

Parker, W. H. (1982). Mackinder: Geography as an aid to statecraft. Clarendon Pr.

Chicago Style (17th ed.) Citation

Parker, William H. Mackinder: Geography as an Aid to Statecraft. Oxford: Clarendon Pr, 1982.

MLA (9th ed.) Citation

Parker, William H. Mackinder: Geography as an Aid to Statecraft. Clarendon Pr, 1982.