Παραπομπή σε μορφή APA (7η εκδ.)

Hernández Herrero, A. (2005). Content-based instruction in an english oral communication course at the University of Costa Rica. Universidad de Costa Rica.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hernández Herrero, Annabelle. Content-based Instruction in an English Oral Communication Course at the University of Costa Rica. Universidad de Costa Rica, 2005.

Παραπομπή σε μορφή MLA (9th εκδ.)

Hernández Herrero, Annabelle. Content-based Instruction in an English Oral Communication Course at the University of Costa Rica. Universidad de Costa Rica, 2005.