The distribution of designated noxious weeds in the United States
By: Mark Busch
Contributors: United States. Animal and Plant Health Inspection Service
Series: APHIS 81 -- 29; APHIS 81 -- 29.
Published: 1978
Language: eng
Number of pages: 12
Subjects: Noxious weeds; Geographical distribution
Notes: Caption title.

Includes bibliographical references (pages 11-12).