Παραπομπή σε μορφή APA (7η εκδ.)

Santiesteban Naranjo, E. (2024). Sharpening up your Vocabulary: A Practical Guide for English as a Foreign Language Learner. Editorial Tecnocientífica Americana.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Santiesteban Naranjo, Ernan. Sharpening Up Your Vocabulary: A Practical Guide for English as a Foreign Language Learner. Texas: Editorial Tecnocientífica Americana, 2024.

Παραπομπή σε μορφή MLA (9th εκδ.)

Santiesteban Naranjo, Ernan. Sharpening Up Your Vocabulary: A Practical Guide for English as a Foreign Language Learner. Editorial Tecnocientífica Americana, 2024.