Mikkelson, K. (2007). Palawan becoming a sustainable hotspot. Agriculture.
Chicago Style aipamenaMikkelson, Keith. "Palawan Becoming a Sustainable Hotspot." Agriculture 2007.
MLA aipamenaMikkelson, Keith. "Palawan Becoming a Sustainable Hotspot." Agriculture, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.