@incollection{fdi:15524,
  title = {{L}es unit{\'e}s naturelles},
  author = {{B}outrais, {J}ean},
  editor = {},
  language = {{FRE}},
  abstract = {},
  keywords = {{ETUDE} {REGIONALE} ; {MILIEU} {NATUREL} ; {GEOGRAPHIE} {PHYSIQUE} ; {GEOMORPHOLOGIE} ; {CAMEROUN} {EXTREME} {NORD} ; {MAYO} {TSANAGA} ; {MONTS} {MANDARA}},
  booktitle = {{L}e {N}ord du {C}ameroun : {D}es hommes, une r{\'e}gion},
  numero = {102},
  pages = {23--62},
  address = {{P}aris},
  publisher = {{ORSTOM}},
  series = {{M}{\'e}moires {ORSTOM}},
  year = {1984},
  ISBN = {2-7099-0689-9},
  URL = {https://www.documentation.ird.fr/hor/fdi:15524},
}