TY - BOOK AU - Keith,Lawrence H. ED - American Chemical Society. TI - Principles of environmental sampling SN - 0841211736 U1 - 628.50287 22 PY - 1992/// CY - [Washington] PB - American Chemical Society KW - Pollution KW - Measurement KW - BUEsh KW - Environmental chemistry KW - Environmental monitoring KW - Quality assurance KW - GGEN KW - January2018 N1 - Includes bibliographical references and indexes ER -