Παραπομπή σε μορφή APA (7η εκδ.)

Popkin, R. H. (1979). The history of scepticism from Erasmus to Spinoza. University of California Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Popkin, Richard H. The History of Scepticism from Erasmus to Spinoza. Berkeley;Los Angeles;London: University of California Press, 1979.

Παραπομπή σε μορφή MLA (8th εκδ.)

Popkin, Richard H. The History of Scepticism from Erasmus to Spinoza. University of California Press, 1979.