APA Style
USA, Department of Agriculture. (1991).
Agriculture and the environment : The Yearbook of agriculture 1991 .
USA:
USA, Department of Agriculture.
Chicago Style
USA, Department of Agriculture.
Agriculture and the environment : The Yearbook of agriculture 1991.
USA:
USA, Department of Agriculture,
1991.
Texts.
MLA Style
USA, Department of Agriculture.
Agriculture and the environment : The Yearbook of agriculture 1991.
USA:
USA, Department of Agriculture,
1991.
Texts.
Turabian Style
USA, Department of Agriculture.
Agriculture and the environment : The Yearbook of agriculture 1991.
USA:
USA, Department of Agriculture,
1991.
Texts.