APA   Click to copy
Zipfel, B., & Berger, L. (2009). New Cenozoic fossil- bearing site abbreviations for collections of the University of the Witwatersrand.

Chicago/Turabian   Click to copy
Zipfel, B., and L. Berger. “New Cenozoic Fossil- Bearing Site Abbreviations for Collections of the University of the Witwatersrand” (2009).

MLA   Click to copy
Zipfel, B., and L. Berger. New Cenozoic Fossil- Bearing Site Abbreviations for Collections of the University of the Witwatersrand. 2009.

@article{b2009a,
  title = {New Cenozoic fossil- bearing site abbreviations for collections of the University of the Witwatersrand},
  year = {2009},
  author = {Zipfel, B. and Berger, L.}
}