(2000, 06. January). Exercise research associates of Oregon, Inc. Zugriff unter http://www.exra.org/
APA (7th ed.) CitationExercise research associates of Oregon, Inc.
Chicago Style (17th ed.) CitationExercise Research Associates of Oregon, Inc.
MLA (9th ed.) CitationExercise Research Associates of Oregon, Inc.
Warning: These citations may not always be 100% accurate.