@article{oai:tsukuba.repo.nii.ac.jp:00029836, author = {山下, 亜紀郎 and YAMASHITA, Akio and MARUYAMA, Hiroaki}, journal = {Tsukuba geoenvironmental sciences}, month = {Dec}, pages = {37--42}, title = { A cultural ecological study on traditional farm management in Maués, Brazilian Amazon}, volume = {9}, year = {2013}, yomi = {ヤマシタ, アキオ} }