Rules and regulations of Plant Pest Control Branch and Plant Quarantine Branch.

MLA

Rules and Regulations of Plant Pest Control Branch and Plant Quarantine Branch. Washington: Unites States Dept. of Agriculture, 1956.

APA

(1956). Rules and regulations of Plant Pest Control Branch and Plant Quarantine Branch. Washington: Unites States Dept. of Agriculture.

Chicago

Rules and Regulations of Plant Pest Control Branch and Plant Quarantine Branch. Washington: Unites States Dept. of Agriculture, 1956.