TY - BOOK AU - Winchell,Alexander Newton AU - Winchell,Horace TI - Elements of optical mineralogy: an introduction to microscopic petrography PY - 1951/// CY - New York, London PB - Wiley, Chapman & Hall KW - Optical mineralogy N1 - Includes index; Includes bibliographical references UR - http://www.archive.org/details/elementsofoptica00winc UR - http://www.openlibrary.org/books/OL24206029M ER -