APA (7th ed.) Citation

Clark, A. W. (1985). Longman dictionary of geography: Human and physical. Longman.

Chicago Style (17th ed.) Citation

Clark, Audrey W. Longman Dictionary of Geography: Human and Physical. Essex, England: Longman, 1985.

MLA (9th ed.) Citation

Clark, Audrey W. Longman Dictionary of Geography: Human and Physical. Longman, 1985.