TY - BOOK AU - Singer,Michael J. AU - Janitzky,Peter ED - United States TI - Field and laboratory procedures used in a soil chronosequence study / U1 - 551.78 19th ed. PY - 1986///]. CY - [Washngton]: PB - [United States Government Printing Office], KW - Soil chronosequences KW - Research KW - Technique KW - Handbooks, manuals, etc KW - Soils KW - Analysis N1 - Includes bibliographical references (p. 47-49) ER -