APA (7th ed.) Citation

Muller, S. H. (1964). The world's living languages: Basic facts of their structure, kinship, location, and number of speakers. Ungar.

Chicago Style (17th ed.) Citation

Muller, Siegfried Hermann. The World's Living Languages: Basic Facts of Their Structure, Kinship, Location, and Number of Speakers. New York: Ungar, 1964.

MLA (9th ed.) Citation

Muller, Siegfried Hermann. The World's Living Languages: Basic Facts of Their Structure, Kinship, Location, and Number of Speakers. Ungar, 1964.