Clark, A. W. (1985). Longman dictionary of geography: Human and physical. Longman.
Cita Chicago (17th ed.)Clark, Audrey W. Longman Dictionary of Geography: Human and Physical. Essex, England: Longman, 1985.
Cita MLA (9th ed.)Clark, Audrey W. Longman Dictionary of Geography: Human and Physical. Longman, 1985.
Atenció: Aquestes cites poden no estar 100% correctes.