Design and evaluation of a terrestrial model ecosystem for evaluation substitute pesticide chemicals /

Mode of access: Internet.

Laboratory model ecosystem evaluations of twenty-six new pesticides : screening of pesticides for potential adverse environmental effects in Illinois /

Mode of access: Internet.

Screening of pesticides for potential adverse environmental effects in Illinois : laboratory model ecosystem evaluations of twenty-six new pesticides /

"Doc. no. 81/40."

Dynamics of the world climate/food system : a model for prediction of world food production and allocation /

Includes bibliographical references.