Study tour of the United States and Canada, July to October, 1969
By: [by] G. L. Swartz.
Contributors: Queensland. Dept. of Primary Industries.
Publisher: Queensland Dept. of Primary Industries
Published: 1969
Place of publication: [Brisbane]
Language: eng
Subjects: Soil conservation -- United States.; Land use -- Canada -- Classification.
Notes: Includes bibliographies.
Cover title.