Cita APA

Ian Douglas, Chris Perkins, & Richard Huggett. (2007). Companion encyclopaedia of geography from local to global (v.1) (2nd.). Routledge.

Citación estilo Chicago

Ian Douglas, Chris Perkins, and Richard Huggett. Companion Encyclopaedia of Geography from Local to Global (v.1). 2nd. London: Routledge, 2007.

Cita MLA

Ian Douglas, et al. Companion Encyclopaedia of Geography from Local to Global (v.1). 2nd. Routledge, 2007.