Παραπομπή σε μορφή APA (7η εκδ.)

Papaefthymiou-Lytra, S. (1990). Explorations in foreign language classroom discourse (2nd imp.). The University of Athens.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Papaefthymiou-Lytra, Sophia. Explorations in Foreign Language Classroom Discourse. 2nd imp. Athens: The University of Athens, 1990.

Παραπομπή σε μορφή MLA (9th εκδ.)

Papaefthymiou-Lytra, Sophia. Explorations in Foreign Language Classroom Discourse. 2nd imp. The University of Athens, 1990.