Peter F. Erickson

THE NATURE of INFINITESIMALS  Peter F. Erickson Paperback. Xlibris, 2013-01-07 ISBN 9781479701827     THE NATURE of INFINITESIMALS  Peter F. Erickson Hardcover. Xlibris Corporation, 2013-01-07 ISBN 9781479701834     Nature of Infinitesimals  Peter F Erickson eBook. Xlibris US, 2006-05-05 ISBN 9781479701841     Absolute Space, Absolute Time, & Absolute Motion  Peter F. Erickson Paperback. Xlibris Corporation, 2006-06-28 ISBN 9781599261171     Absolute Space, Absolute Time, & Absolute Motion  Peter F. Erickson Hardcover. Xlibris Corporation, 2006-06-28 ISBN 9781599261188