@article{oai:minpaku.repo.nii.ac.jp:00002528,
 author = {Bourke, R. Michael},
 journal = {Senri Ethnological Studies},
 month = {Mar},
 pages = {255--264},
 title = {The Decline of Taro and Taro Irrigation in Papua New Guinea},
 volume = {78},
 year = {2012}
}