WILLIAMS, Howel
PEROGRAPHY : AN INTRODUCTION TO THE STUDY OF ROCKS IN THIN SECTIONS - Delhi C.B.S. Publishers and Distributors, Delhi 1985
552 / WIL/PE
PEROGRAPHY : AN INTRODUCTION TO THE STUDY OF ROCKS IN THIN SECTIONS - Delhi C.B.S. Publishers and Distributors, Delhi 1985
552 / WIL/PE