@techreport{fdi:02916,
  title = {{C}ontribution {\`a} l'{\'e}tude des d{\'e}ficiences min{\'e}rales sous culture cotonni{\`e}re du {N}ord-{C}ameroun},
  author = {{F}ritz, {A}. and {V}allerie, {M}ichel},
  editor = {},
  language = {{FRE}},
  abstract = {},
  keywords = {{APTITUDE} {DU} {SOL} ; {ENGRAIS} ; {MATIERE} {ORGANIQUE} ; {CONSTITUANT} {MINERAL} ; {PEDOGENESE} ; {FERTILITE} ; {COTONNIER} ; {CAMEROUN} {EXTREME} {NORD} ; {CAMEROUN} {NORD}},
  address = {{M}aroua ({CMR}) ; {Y}aound{\'e}},
  publisher = {{IRCT} ; {ORSTOM}},
  series = {},
  pages = {({III})-18},
  year = {1971},
  URL = {https://www.documentation.ird.fr/hor/fdi:02916},
}