World Federation of Sleep Research Societies. (1999). Abstracts: ... international congress of the World Federation of Sleep Research Societies (WFSRS).
Chicago-Zitierstil (17. Ausg.)World Federation of Sleep Research Societies. Abstracts: ... International Congress of the World Federation of Sleep Research Societies (WFSRS). [Los Angeles, Calif.], 1999.
MLA-Zitierstil (9. Ausg.)World Federation of Sleep Research Societies. Abstracts: ... International Congress of the World Federation of Sleep Research Societies (WFSRS). 1999.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.