APA
Ford E., . (1938). Study of heredity. London: Thornton butterworth Ltd.
Chicago
Ford E.B, . 1938. Study of heredity. London: Thornton butterworth Ltd.
Harvard
Ford E., . (1938). Study of heredity. London: Thornton butterworth Ltd.
MLA
Ford E.B, . Study of heredity. London: Thornton butterworth Ltd. 1938.