TY - JOUR AU - L.R. Hilpert AU - Willie May AU - Stephen Wise AU - S. Chesler AU - Harry Hertz C2 - Analytical Chemistry DA - 1978-12-01 00:12:00 LA - en M1 - 50 PB - Analytical Chemistry PY - 1978 TI - Interlaboratory Comparison of Determination for Trace Level Petroleum Hydrocarbons in Marine Sediments ER -