Thiers, Harry D. 1919- California mushrooms : a field guide to the boletes / by Harry D. Thiers - New York : Hafner Press, 1975 - x, 261 p. : ill. ; 24 cm. Bibliography: p. 249 -254 ISBN: 0028534107 Subjects--Topical Terms: Mushrooms--Identification--CaliforniaBoletaceae