Παραπομπή σε μορφή APA (7η εκδ.)

Papaefthymiou-Lytra, S. (1987). Communicating and learning strategies in English as a foreign language with particular reference to the Greek learner of English. National and Capodistrian University of Athens. School of Philosophy.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Papaefthymiou-Lytra, Sophia. Communicating and Learning Strategies in English as a Foreign Language with Particular Reference to the Greek Learner of English. Athens: National and Capodistrian University of Athens. School of Philosophy, 1987.

Παραπομπή σε μορφή MLA (9th εκδ.)

Papaefthymiou-Lytra, Sophia. Communicating and Learning Strategies in English as a Foreign Language with Particular Reference to the Greek Learner of English. National and Capodistrian University of Athens. School of Philosophy, 1987.