APA

Brown R. H., . (1956). Farm electrification. New York: McGraw Hill.

Chicago

Brown Robert H, . 1956. Farm electrification. New York: McGraw Hill.

Harvard

Brown R. H., . (1956). Farm electrification. New York: McGraw Hill.

MLA

Brown Robert H, . Farm electrification. New York: McGraw Hill. 1956.