Reed Doob, P. (1990). The Idea of the Labyrinth from Classical Antiquity through the Middle Ages. Cornell University Press.

Reed Doob, Penelope. The Idea of the Labyrinth from Classical Antiquity Through the Middle Ages. Ithaca: Cornell University Press, 1990.

Reed Doob, Penelope. The Idea of the Labyrinth from Classical Antiquity Through the Middle Ages. Cornell University Press, 1990.