APA

Ward Edmund, . (1981). The Baltic emerald. New York, N.Y: St Martin's Press.

Chicago

Ward Edmund, . 1981. The Baltic emerald. New York, N.Y: St Martin's Press.

Harvard

Ward Edmund, . (1981). The Baltic emerald. New York, N.Y: St Martin's Press.

MLA

Ward Edmund, . The Baltic emerald. New York, N.Y: St Martin's Press. 1981.