Guide to the classification and identification of the actinomycetes and their antibiotics / Selman A Waksman and Hubert A Lechevalier. Waksman, Selman A. Lechevalier,Hubert A . Botany. 589.9 WAG includes bibliographical references and index. Baltimore : Williams & Wilkins ; 1953. 1953. 1953 Text v,246p. : eng