Παραπομπή σε μορφή APA (7η εκδ.)

Cooper, P. (2016). Beginning Ruby: From Novice to Professional (3rd ed. 2016.). Apress : Imprint: Apress.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Cooper, Peter. Beginning Ruby: From Novice to Professional. 3rd ed. 2016. Berkeley, CA: Apress : Imprint: Apress, 2016.

Παραπομπή σε μορφή MLA (8th εκδ.)

Cooper, Peter. Beginning Ruby: From Novice to Professional. 3rd ed. 2016. Apress : Imprint: Apress, 2016.