Barrington, E. J. W., & Agarwal, V. K. (1980). Enviornmental biology. Edward Arnold.
Chicago Style aipamenaBarrington, E. J. W., and V. K. Agarwal. Enviornmental Biology. London: Edward Arnold, 1980.
MLA aipamenaBarrington, E. J. W., and V. K. Agarwal. Enviornmental Biology. Edward Arnold, 1980.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.