Black, J. (1990). The Alleged "Extra" Phonemes of Sumerian.
Chicago Style (17th ed.) CitationBlack, J.A. The Alleged "Extra" Phonemes of Sumerian. 1990.
MLA (8th ed.) CitationBlack, J.A. The Alleged "Extra" Phonemes of Sumerian. 1990.
Warning: These citations may not always be 100% accurate.