APA (7th ed.) Zitazioa

Service, C. R. (2014). Common Core State Standards: Frequently Asked Questions. Congressional Research Service.

Chicago Style (17th ed.) Zitazioa

Service, Congressional Research. Common Core State Standards: Frequently Asked Questions. Congressional Research Service, 2014.

MLA (9th ed.) Zitazioa

Service, Congressional Research. Common Core State Standards: Frequently Asked Questions. Congressional Research Service, 2014.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.