Rettew, Granville Raymond 1903- creator Thompson, Forrest Grant 1908- Mushroom Supply Company, Toughkenamon, Pa text xx Toughkenamon, Pa Mushroom Supply Co. [c1948] 1948 4th ed. monographic eng

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272 p. illus. 21 cm. by G. Raymond Rettew, with the collaboration of Forrest G. Thompson. Earlier editions issued by Chester County Mushroom Laboratories, West Chester, PA. Mushroom culture Mushrooms Diseases and pests SB353 .R44 635.8 agr48000409 DLC 761005 20260227111009.0 agr48000409