APA (7th ed.) Citation

World Federation of Sleep Research Societies. (1999). Abstracts: ... international congress of the World Federation of Sleep Research Societies (WFSRS).

Chicago Style (17th ed.) Citation

World Federation of Sleep Research Societies. Abstracts: ... International Congress of the World Federation of Sleep Research Societies (WFSRS). [Los Angeles, Calif.], 1999.

MLA (9th ed.) Citation

World Federation of Sleep Research Societies. Abstracts: ... International Congress of the World Federation of Sleep Research Societies (WFSRS). 1999.

Warning: These citations may not always be 100% accurate.