Basic econometrics.

by Gujarati, Damordar N.
Published 1988

Agroecology /

by Carroll, C. Ronald.
Published 1990

Isolation of biotechnological organisms from nature.

by Labeda, David P.
Published 1990

Principles of soil-plant interrelationships /

by Rending, Victor V.
Published 1989

Macroevolutionary dynamics, species, niches, and adaptive peaks.

by Eldrenge, Niles.
Published 1989

Biotechnology of plant-microbe interactions /

Published 1990