APA

Allen R. G. D., . (1959). Mathematical economics. London: Macmillan.

Chicago

Allen Roy George Douglas, . 1959. Mathematical economics. London: Macmillan.

Harvard

Allen R. G. D., . (1959). Mathematical economics. London: Macmillan.

MLA

Allen Roy George Douglas, . Mathematical economics. London: Macmillan. 1959.