APA
Robinson J., . (1969). The economics of imperfect competition. London: Macmillan, Inglaterra.
Chicago
Robinson Joan, . 1969. The economics of imperfect competition. London: Macmillan, Inglaterra.
Harvard
Robinson J., . (1969). The economics of imperfect competition. London: Macmillan, Inglaterra.
MLA
Robinson Joan, . The economics of imperfect competition. London: Macmillan, Inglaterra. 1969.