TY - HOUR CN - T 17.6/4: CY - Washington, D.C. : DA - [1989- ID - 136086 KW - Chemical laboratories KW - Science KW - Smuggling PB - The Office, PP - Washington, D.C. : PY - [1989- T1 - Customs laboratory bulletin :a publication of the U.S. Customs Service, Office of Laboratories & Scientific Services. TI - Customs laboratory bulletin :a publication of the U.S. Customs Service, Office of Laboratories & Scientific Services. ER -