The PPQ William F. Helms student scholarship program
Edition: Slightly rev. Jan. 1998.; Slightly rev. Jan. 2000
Series: Miscellaneous publication -- no. 1531; Miscellaneous publication (United States. Dept. of Agriculture) -- no. 1531.
Publisher: U.S. Dept. of Agriculture, Animal and Plant Health Inspection Service
Published: 1998
Place of publication: Washington, D.C.?]
Language: eng
Subjects: Protection of Plants; Scholarships, fellowships; Vocational guidance; Plant quarantine
Notes: Cover title.