Keith, Lawrence H.

Environmental sampling and analysis:a practical guide …で: Keith, Lawrence H. (言語・文字資料 (印刷物))

Epa's pesticide fact sheet database …で: Keith, Lawrence H.; Walker, Mary M. (言語・文字資料 (印刷物))

Chlorinated dioxins and dibenzofurans in perspective …で: Choudhary, Gangadhar; Keith, Lawrence H.; Rappe, Christoffer (言語・文字資料 (印刷物))