K. C. Li & C. Y. Wang. 2nd ed., rev. & enl.
Tungsten.
R591457. Tungsten. By K. C. Li & C. Y. Wang. 2nd ed., rev. & enl. © 11Apr47; A11996. Litton Educational Publishing, Inc. (PWH); 25Nov74; R591457.
Litton Educational Publishing, Inc.|PWH