@misc{indiciae9fabe911a2cc,
  title = {[Reference books--their classification and usage].},
  author = {Y Tsuda and M Katayama and A Yamauchi},
  year = {1969},
  url = {https://pubmed.ncbi.nlm.nih.gov/5197524/},
  note = {Source identifier: 5197524}
}