Methods for the determination of chemical substances in marine and estuarine environmental samples by Environmental Monitoring Systems Laboratory (Cincinnati, Ohio)

Subjects:

Methods for the determination of chemical substances in marine and estuarine environmental matrices by National Exposure Research Laboratory (U.S.)

Subjects: “…Chemical oceanography Methodology.…”

Communication reports.

Subjects:

U.S. decennial life tables for 1989-91. by National Center for Health Statistics (U.S.)

Subjects: “…Mortality United States States Tables Methodology.…”