APA

Martin G. J., James P. E. & James E. W. (1993). All possible worlds: a history of geographical ideas. New York [etc.]: John Wiley & Sons.

Chicago

Martin Geoffrey J, James Preston Everett and James Eileen W. 1993. All possible worlds: a history of geographical ideas. New York [etc.]: John Wiley & Sons.

Harvard

Martin G. J., James P. E. and James E. W. (1993). All possible worlds: a history of geographical ideas. New York [etc.]: John Wiley & Sons.

MLA

Martin Geoffrey J, James Preston Everett and James Eileen W. All possible worlds: a history of geographical ideas. New York [etc.]: John Wiley & Sons. 1993.