McKnight, Kent H. A field guide to mushrooms North America - Boston, Mass. : Houghton Mifflin, 1987 - 429 p. : ilus. - The Peterson field guide series ; 34 . - The Peterson field guide series ; 34 . 59-220 LCCN: 5828 Subjects--Topical Terms: Setas. Dewey Class. No.: 635.8 / M32