Agriculture in 1980
Manna: An Historical Geography
by
Donkin, R. a.
An Introduction to Crop Physiology
by
Milthorpe, F. L., Moorby, J.
Farm Planning and Control
by
Barnard, C. S.
Manna: A Historical Geography
by
Donkin, R. a.
Weltwirtschaftspflanzen im Wettbewerb
by
Andreae, Bernd
Tropical Soils & Soil Survey
by
Young, A., Young, Anthony
A Taxonomic Revision of the Genus Origanum (Labiatae): (Labiatae)
by
Ietswaart, J. H.
From Arsenic to DDT: A History of Entomology in Western Canada
by
W. Riegert, Paul
