کتاب های Joseph H. Greenberg (editor)
Universals of Human Language, Vol. 2: Phonology
Joseph H. Greenberg (editor), Charles A. Ferguson (editor), Edith A. Moravcsik (editor), 1978
Universals of Human Language, Volume 3: Word Structure
Joseph H. Greenberg (editor), Charles A. Ferguson (editor), Edith A. Moravcsik (editor), 1978
