Laver, J. (1979). Voice Quality: A classified research bibliography. Amsterdam/Philadelphia: John Benjamins Pub. Co..
Чикагска система за цитиранеLaver, John. Voice Quality: A Classified Research Bibliography. Amsterdam/Philadelphia: John Benjamins Pub. Co., 1979.
MLA формат за цитиранеLaver, John. Voice Quality: A Classified Research Bibliography. Amsterdam/Philadelphia: John Benjamins Pub. Co., 1979.
Внимание: Тези цитати може да не са 100% точни.