APA (7th ed.) Citation

United States Civil Service Commission. (1927). Retirement age of gardeners. [publisher not identified].

Chicago Style (17th ed.) Citation

United States Civil Service Commission. Retirement Age of Gardeners. [Washington]: [publisher not identified], 1927.

MLA (9th ed.) Citation

United States Civil Service Commission. Retirement Age of Gardeners. [publisher not identified], 1927.

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