Frankfort, H., & Groenewegen-Frankfort, H. A. 1. (1961). Before philosophy: The intellectual adventure of ancient man; an essay on speculative thought in the ancient Near East. Harmondsworth, Middlesex,: Penguin Books.
Чикагска система за цитиранеFrankfort, Henri, и H. A. 1896- Groenewegen-Frankfort. Before Philosophy: The Intellectual Adventure of Ancient Man; an Essay On Speculative Thought in the Ancient Near East. Harmondsworth, Middlesex,: Penguin Books, 1961.
MLA формат за цитиранеFrankfort, Henri, и H. A. 1896- Groenewegen-Frankfort. Before Philosophy: The Intellectual Adventure of Ancient Man; an Essay On Speculative Thought in the Ancient Near East. Harmondsworth, Middlesex,: Penguin Books, 1961.
Внимание: Тези цитати може да не са 100% точни.