A spreader of granulated materials for installation on an airplane
By: prepared by United States Department of Agriculture, Agricultural Research Service, Plant Pest Control Division, Methods Improvement Section, Plant Industry Station
Contributors: United States. Agricultural Research Service
Series: ARS 81 -- 5; ARS 81 -- 5.
Published: 1958
Language: eng
Subjects: Aerial spraying and dusting in agriculture; Pesticides; Equipment and supplies; Spraying equipment
Notes: Caption title.

"March 1958."