Haacke et al. 1997

Haacke and G, Wilfrid H. and Eiseb, Eliphas and and Namaseb, L. 1997. Internal and external relations of Khoe-Khoe dialects: A preliminary survey. In Haacke, E.H.G. & E.E. Elderkin (eds.), Namibian languages: Reports and papers. Köln: Rüdiger Köppe Verlag.; Sands, B.E. 1995. Evaluating claims of distant linguistic relationship: The case of Khoisan. MS, UCLA.; Winter, Jürgen Christoph. 1986. Le parlers du Khoisan Central. In Guarisma, Gladys and Wilhelm J. G. Möhlig (eds.), La methode dialectometrique appliquée aux langues africaines, 395-431. Berlin: Dietrich Reimer Verlag.

@misc{6291,
  author = {Haacke and G, Wilfrid H. and Eiseb, Eliphas and  and Namaseb, L.},
  title  = {Internal and external relations of Khoe-Khoe dialects: A preliminary survey. In Haacke, E.H.G. & E.E. Elderkin (eds.), Namibian languages: Reports and papers. Köln: Rüdiger Köppe Verlag.; Sands, B.E. 1995. Evaluating claims of distant linguistic relationship: The case of Khoisan. MS, UCLA.; Winter, Jürgen Christoph. 1986. Le parlers du Khoisan Central. In Guarisma, Gladys and Wilhelm J. G. Möhlig (eds.), La methode dialectometrique appliquée aux langues africaines, 395-431. Berlin: Dietrich Reimer Verlag.},
  year   = {1997}
}