Smith, Helen Vandervort, 1909- How to know the non-gilled fleshy fungi / Helen V. Smith, Alexander H. Smith. - Dubuque, Iowa : Wm. C. Brown Publishers, 1973. - v, 402 p. : ill. ; 22 cm. - The Pictured key nature series. . - The Pictured key nature series. . ISBN: 0697048675 Subjects--Topical Terms: Mushrooms--North America--Identification