United States. Internal Revenue Service. Instructions for Form 990, return of organization exempt from income tax. Dept. of the Treasury, Internal Revenue Service.
Chicago Style (17th ed.) CitationUnited States. Internal Revenue Service. Instructions for Form 990, Return of Organization Exempt from Income Tax. [Washington, D.C.]: Dept. of the Treasury, Internal Revenue Service.
MLA (9th ed.) CitationUnited States. Internal Revenue Service. Instructions for Form 990, Return of Organization Exempt from Income Tax. Dept. of the Treasury, Internal Revenue Service.
Warning: These citations may not always be 100% accurate.