APA

Rollin S. F., United States, . (1963). Questions and answers about the Federal Seed Act. Washington, D.C: U.S. Dept. of Agriculture, Agricultural Marketing Service, Grain Division.

Chicago

Rollin S F, United States, . 1963. Questions and answers about the Federal Seed Act. Washington, D.C: U.S. Dept. of Agriculture, Agricultural Marketing Service, Grain Division.

Harvard

Rollin S. F., United States, . (1963). Questions and answers about the Federal Seed Act. Washington, D.C: U.S. Dept. of Agriculture, Agricultural Marketing Service, Grain Division.

MLA

Rollin S F, United States, . Questions and answers about the Federal Seed Act. Washington, D.C: U.S. Dept. of Agriculture, Agricultural Marketing Service, Grain Division. 1963.