Sayson, M. L. (1998). Illegal trade in wildlife done through Internet. Manila Chronicle.
Chicago Style aipamenaSayson, Malou L. "Illegal Trade in Wildlife Done Through Internet." Manila Chronicle 1998.
MLA aipamenaSayson, Malou L. "Illegal Trade in Wildlife Done Through Internet." Manila Chronicle, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.