APA (7th ed.) Citation

National Board of the Young Men's Christian Associations. YMCA year book and official roster. National Board of Young Men's Christian Association [etc.].

Chicago Style (17th ed.) Citation

National Board of the Young Men's Christian Associations. YMCA Year Book and Official Roster. [New York]: National Board of Young Men's Christian Association [etc.].

MLA (9th ed.) Citation

National Board of the Young Men's Christian Associations. YMCA Year Book and Official Roster. National Board of Young Men's Christian Association [etc.].

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