@article{oai:tsukuba.repo.nii.ac.jp:00007142,
 author = {Arita, Yukiko},
 journal = {Tsukuba English Studies},
 month = {Sep},
 pages = {137--150},
 title = {A Comparative Study of Japanese and English Polite Expressions : With Special Reference to Request},
 volume = {20},
 year = {2001}
}