Παραπομπή σε μορφή APA (7η εκδ.)

(2012). THE PEOPLE WHO CHANGED THE WORLD KARL MARX: MOST INFLUENTIAL PHILOSOPHER OF THE MODERN WORLD (1st.). VIJAY GOEL.

Παραπομπή σε μορφή Chicago (17η εκδ.)

THE PEOPLE WHO CHANGED THE WORLD KARL MARX: MOST INFLUENTIAL PHILOSOPHER OF THE MODERN WORLD. 1st. NEW DELHI: VIJAY GOEL, 2012.

Παραπομπή σε μορφή MLA (9th εκδ.)

THE PEOPLE WHO CHANGED THE WORLD KARL MARX: MOST INFLUENTIAL PHILOSOPHER OF THE MODERN WORLD. 1st. VIJAY GOEL, 2012.