APA (7th ed.) Citation

(1960). The department of labor. 20 Years of work 1940-1960. Commonwealth of Puerto Rico.

Chicago Style (17th ed.) Citation

The Department of Labor. 20 Years of Work 1940-1960. Commonwealth of Puerto Rico, 1960.

MLA (8th ed.) Citation

The Department of Labor. 20 Years of Work 1940-1960. Commonwealth of Puerto Rico, 1960.

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