Theology of Arithmetic: On the Mystical, Mathematical and Cosmological Symbolism of the First Ten Numbers Paperback – Illustrated, 1 Nov. 1988

The Theology of Arithmetic

The Manual of Harmonics of Nicomachus the Pythagorean

The Pythagorean Sourcebook and Library: An Anthology of Ancient Writings Which Relate to Pythagoras and Pythagorean Philosophy