Appel, W. (1980). Grundzüge der kausalen Phonetik. VWGÖ.
Chicago Style (17th ed.) CitationAppel, Wilhelm. Grundzüge Der Kausalen Phonetik. Wien: VWGÖ, 1980.
MLA (9th ed.) CitationAppel, Wilhelm. Grundzüge Der Kausalen Phonetik. VWGÖ, 1980.
Warning: These citations may not always be 100% accurate.