@article{oai:shizuoka.repo.nii.ac.jp:00010124,
 author = {半田, 孝司},
 journal = {静岡地学},
 month = {Nov},
 note = {application/pdf},
 pages = {25--28},
 title = {地学教育の教材として砂を見直す},
 volume = {84},
 year = {2001}
}