Lassonde, L., & Grayston, G. (1997). Coping with population challenges. Earthscan.
Chicago Style aipamenaLassonde, Louise, and Graham Grayston. Coping with Population Challenges. London: Earthscan, 1997.
MLA aipamenaLassonde, Louise, and Graham Grayston. Coping with Population Challenges. Earthscan, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.