APA

Little E. L., . (1953). Check list of native and naturalized trees of the United States, incluiding Alaska. Washington: Department of Agriculture.

Chicago

Little Elbert L, . 1953. Check list of native and naturalized trees of the United States, incluiding Alaska. Washington: Department of Agriculture.

Harvard

Little E. L., . (1953). Check list of native and naturalized trees of the United States, incluiding Alaska. Washington: Department of Agriculture.

MLA

Little Elbert L, . Check list of native and naturalized trees of the United States, incluiding Alaska. Washington: Department of Agriculture. 1953.