Pestina says: help stop the spread of plant pests /
prepared by Plant Protection and Quarantine Programs.

APA Citation

United States. Animal and Plant Health Inspection Service. Plant Protection and Quarantine Programs., United States. Department of Agriculture. (1972). Pestina says: help stop the spread of plant pests. Rev. Washington, DC: United States Government Printing Office.

MLA Citation

United States. Animal and Plant Health Inspection Service. Plant Protection and Quarantine Programs, and United States. Department of Agriculture. Pestina Says: Help Stop the Spread of Plant Pests. Rev. Washington, DC: United States Government Printing Office, 1972.