Παραπομπή σε μορφή APA (7η εκδ.)

Boardman, J., & Wilkins, R. (1970). Greek gems and finger rings: Early bronze age to late classical. Thames and Hudson.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Boardman, John, και Robert Wilkins. Greek Gems and Finger Rings: Early Bronze Age to Late Classical. London: Thames and Hudson, 1970.

Παραπομπή σε μορφή MLA (9th εκδ.)

Boardman, John, και Robert Wilkins. Greek Gems and Finger Rings: Early Bronze Age to Late Classical. Thames and Hudson, 1970.