Sprague, Roderick, Ph. D.2018-12-282018-12-281967-11-04EPM-069-01-001http://hdl.handle.net/20.500.11867/15046Single sheet 11.5 x 9 inch, bi-folded. Printed recto and verso. Front cover annotated.Reprinted from Dissertation Abstracts, Volume XXVIII. Sent "with sincere appreciation for your help," and a corresponding note from Relander which says when he sent the helpful information.