APA (7th ed.) Citation

Crowell, D., & Petschauer, M. (2018). Retiro de un casco de futbol americano. McGraw-Hill Education LLC..

Chicago Style (17th ed.) Citation

Crowell, Dean, and Meredith Petschauer. Retiro De Un Casco De Futbol Americano. New York, N.Y.: McGraw-Hill Education LLC., 2018.

MLA (9th ed.) Citation

Crowell, Dean, and Meredith Petschauer. Retiro De Un Casco De Futbol Americano. McGraw-Hill Education LLC., 2018.

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