@article{oai:minpaku.repo.nii.ac.jp:00007156,
 author = {Hitchcock, Robert K.},
 journal = {Senri Ethnological Studies},
 month = {Dec},
 pages = {269--290},
 title = {Hunter-Gatherers, Herders, Agropastoralists and Farm Workers : Hai//om and Ju/’hoansi San and their Neighbors in Namibia in the 20th and 21st Centuries},
 volume = {94},
 year = {2016}
}