APA (7th ed.) Citation

Calpatura, D. G. C., & Espinosa, M. K. L. Economic influences on presidential approval ratings.

Chicago Style (17th ed.) Citation

Calpatura, Donald Gail C., and Maria Karla L. Espinosa. Economic Influences on Presidential Approval Ratings.

MLA (9th ed.) Citation

Calpatura, Donald Gail C., and Maria Karla L. Espinosa. Economic Influences on Presidential Approval Ratings.

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