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Dyfyniad Arddull ChicagoJessen, Michael. Phonetics and Phonology of Tense and Lax Obstruents in German. Amsterdam ; Philadelphia: John Benjamins Pub. Co., 1998.
Dyfyniad MLAJessen, Michael. Phonetics and Phonology of Tense and Lax Obstruents in German. John Benjamins Pub. Co., 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.