Παραπομπή σε μορφή APA (7η εκδ.)

Hatzopoulos, J. N. (2004). Practical philosophy of thought and virtue: The bases to develop a philosophical thought by the ordinary citizen. Universal Publishers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hatzopoulos, John N. Practical Philosophy of Thought and Virtue: The Bases to Develop a Philosophical Thought by the Ordinary Citizen. Florida: Universal Publishers, 2004.

Παραπομπή σε μορφή MLA (8th εκδ.)

Hatzopoulos, John N. Practical Philosophy of Thought and Virtue: The Bases to Develop a Philosophical Thought by the Ordinary Citizen. Universal Publishers, 2004.