Citazione APA

Brown,, K., & Ogilvie,, S. (2009). Concise encyclopedia of languages of the world. Elsevier.

Stile di citazione Chicago

Brown,, Keith, e Sarah Ogilvie. Concise Encyclopedia of Languages of the World. New Delhi: Elsevier, 2009.

Citazione MLA

Brown,, Keith, e Sarah Ogilvie. Concise Encyclopedia of Languages of the World. Elsevier, 2009.