@article{oai:u-ryukyu.repo.nii.ac.jp:02006134,
 author = {石垣, 長三},
 issue = {49},
 journal = {琉大農家便り},
 note = {紀要論文},
 pages = {6--10},
 title = {雑種牝豚の繁殖利用について}
}