APA stil citiranja

Ruhlen, M. (1991). A guide to the world's languages: A guide to the world's languages : Volume 1: Classification. London: Leland Stanford Junior University.

Chicago stil citiranja

Ruhlen, Merritt. A guide to the world's languages: A guide to the world's languages : Volume 1: Classification. London: Leland Stanford Junior University, 1991.

MLA stil citiranja

Ruhlen, Merritt. A guide to the world's languages: A guide to the world's languages : Volume 1: Classification. London: Leland Stanford Junior University, 1991.