APA

Blair W. F., . (1957). Vertebrates of the United States. New York: McGraw-Hill.

Chicago

Blair W Frank, . 1957. Vertebrates of the United States. New York: McGraw-Hill.

Harvard

Blair W. F., . (1957). Vertebrates of the United States. New York: McGraw-Hill.

MLA

Blair W Frank, . Vertebrates of the United States. New York: McGraw-Hill. 1957.