Petering, John books & textbook
An Introduction to the Study of the Stars
Mirbt, C. R. Mitchell, David Petering, John
Waldorf Publications /2015-05-26 Paperback / 56 Pages
isbn-10: 1936367513 / isbn-13: 9781936367511
A Phenomena-Based Physics, Volume III: Sound, Light, Heat, Hydraulics, Hydrostatics, Aeromechanics, and Electromagnetism
von Mackensen, Manfred Petering, John
Waldorf Publications /2020-03-11 Paperback / 128 Pages
isbn-10: 1943582246 / isbn-13: 9781943582242
