Ohtsuka, R. (1990). Population ecology of human survival: Bioecological studies of the Gidra in Papua New Guinea. Tokyo: University of Tokyo Press.
Chicago Style aipamenaOhtsuka, Ryutaro. Population Ecology of Human Survival: Bioecological Studies of the Gidra in Papua New Guinea. Tokyo: University of Tokyo Press, 1990.
MLA aipamenaOhtsuka, Ryutaro. Population Ecology of Human Survival: Bioecological Studies of the Gidra in Papua New Guinea. Tokyo: University of Tokyo Press, 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.