3 treff

Experiments on the chemical control of rhododendron ponticum
Holmes, G.D.
Bok Engelsk 1957
Chemical control of weeds in forest nursery seedbeds
G.D. Holmes, G.W. Ivens
Bok Engelsk 1952
Girdling or banding as a means of increasing cone production in pine plantations
G.D. Holmes, J.D. Matthews
Bok Engelsk 1951