User's guide for the gas chromatography automation system /

Mode of access: Internet.

A guide to the Naididae (Annelida, Clitellata, Oligochaeta) of North America /

Includes index to scientific names, p. 46-47.

Thermal analysis of the ISCO 1680 portable wastewater sampler /

"June 1980."

Performance tests for the evaluation of computerized gas chromatography/mass spectrometry equipment and laboratories /

"April 1980"--Cover.

Calibration of a 90 V̊-notch weir using parameters other than upstream head /

Mode of access: Internet.

USEPA manual of methods for virology : chapter 13.

Chiefly tables.

Eastern lake survey-phase II : national stream survey-phase I : processing laboratory operations report.

Mode of access: Internet.

National performance audit program : 1980 proficiency surveys for sulfur dioxide, nitrogen dioxide, carbon monoxide, sulfate, nitrate, lead and high volume flow /

Mode of access: Internet.

Plutonium-239 and americium-241 uptake by plants from soil /

Mode of access: Internet.

Intensive studies of stream fish populations in Maine /

Mode of access: Internet.

Preliminary analysis of cancer rates in organic chemical-producing counties /

"June 1979."

Method development for determination of polychlorinated hydrocarbons in municipal sludge /

Mode of access: Internet.

R/V Lake Guardian.

Mode of access: Internet.

Delivering timely water quality information to your community : the lake access--Minneapolis project /

"EPA/625/R-00/013."

Processes affecting subsurface transport of leaking underground tank fluids /

"CR 810052."