APA Style

Waterman,A.M. (1939). Septoria Canker of Poplars in the United States . USA: United State Department of Agriculture.

Chicago Style

Waterman,A.M. Septoria Canker of Poplars in the United States. USA: United State Department of Agriculture, 1939. .

MLA Style

Waterman,A.M. Septoria Canker of Poplars in the United States. USA: United State Department of Agriculture, 1939. .

Turabian Style

Waterman,A.M. Septoria Canker of Poplars in the United States. USA: United State Department of Agriculture, 1939. .