by Walter T. Swingle
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The date palm and its utilization in the...
The solar propagating frame for rooting ...
The grain smuts
Bordeaux mixture
The principal diseases of citrous fruits...
The limitation of the satsuma orange to ...
Summary of state and territorial plant q...
Plant-quarantine import restrictions of ...
Plant protection and quarantine
U.S. Department of Agriculture, Animal a...
Title 7, Agriculture
Miscellaneous APHIS programs