APA

Hill A. F., . (1952). Economic botany. New York: McGraw-Hill.

Chicago

Hill Albert F, . 1952. Economic botany. New York: McGraw-Hill.

Harvard

Hill A. F., . (1952). Economic botany. New York: McGraw-Hill.

MLA

Hill Albert F, . Economic botany. New York: McGraw-Hill. 1952.