TY - BOOK AU - Russell , Annie R. AU - Friend, J. Newton, ed. AU - Twiss , Douglas F. AU - Vallance, Reece H. TI - A text-book of inorganic chemistry U1 - 546 21st ed. PY - 1931/// CY - London PB - Charles Grifin KW - Inorganic chemistry KW - Selenium KW - Sulpher KW - Tellurium N1 - Content: v.7 Part 2: Sulphur, selenium, and tellurium ER -