1. One version of the facts :
پدیدآورنده : Henry E. Duckworth ; foreword by Thomas H.B. Symons
کتابخانه: Center and Library of Islamic Studies in European Languages (Qom)
موضوع : Duckworth, H. E., (Henry Edmison),1915-,University of Winnipeg-- Presidents,College teachers-- Canada, Biography,Physicists-- Canada, Biography
