APA (7th ed.) Citation

Ashenfelter, O., & Card, D. Handbook of labor economics.

Chicago Style (17th ed.) Citation

Ashenfelter, Orley, and David Card. Handbook of Labor Economics.

MLA (8th ed.) Citation

Ashenfelter, Orley, and David Card. Handbook of Labor Economics.

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