(1921). [Invitation to meeting held in Interior Department building June 29, 1921; for Federal agency officials]. [publisher not identified].
Chicago Style (17th ed.) Citation[Invitation to Meeting Held in Interior Department Building June 29, 1921; for Federal Agency Officials]. Washington, D.C.: [publisher not identified], 1921.
MLA (9th ed.) Citation[Invitation to Meeting Held in Interior Department Building June 29, 1921; for Federal Agency Officials]. [publisher not identified], 1921.
Warning: These citations may not always be 100% accurate.