APA

Campbell B., . (1984). The Dictionary of birds in colour. London: Peerage books.

Chicago

Campbell Bruce, . 1984. The Dictionary of birds in colour. London: Peerage books.

Harvard

Campbell B., . (1984). The Dictionary of birds in colour. London: Peerage books.

MLA

Campbell Bruce, . The Dictionary of birds in colour. London: Peerage books. 1984.