Crusty's little book on biological soil crust /

Bibliographic Details
Main Author:	Johnson, Doug, 1960-
Corporate Author:	Geological Survey (U.S.)
Format:	Government Document Book
Language:	English
Published:	[Reston, Va.] : [U.S. Dept. of the Interior, Geological Survey], [2002?]
Subjects:	Soil crusting. Earth (Planet) > Surface. Soil chemistry.

Description
Item Description:	Cover title. Shipping list number: 2003-0007-P. Shipping List Date: 10/08/2003
Physical Description:	23 pages : color illustrations ; 11 x 14 cm.