@article{oai:hirogaku-u.repo.nii.ac.jp:00000522,
 author = {Kitamura, Shigeru},
 journal = {弘前学院大学社会福祉学部研究紀要},
 month = {Mar},
 note = {Article},
 pages = {1--10},
 title = {Mineralogical and chemical properties of pumice in the Berl n-Chinameca volcanic area,eastern El Salvador, Central America},
 volume = {19},
 year = {2019}
}