TY - BOOK TI - Preliminary structure investigation of sulphonal C7 H16 O4 S2 by x-ray differaction U1 - 539.7222 PY - 1973/// CY - Dhaka : PB - University Of Dhaka, KW - X-rays N1 - Thesis (MS )-- Department of Physics, University of Dhaka,1973; Includes bibliographical references ER -