[@book{612,
 address = {Pretoria},
 author = {Bates, M.F., Branch, W.R., Bauer, A.M., Burger, M., Marais, J., Alexander, G.J. and de Villiers, M.S.},
 publisher = {Suricata 1. South African National Biodiversity Institute},
 title = {Atlas and Red List of the Reptiles of South Africa, Lesotho and Swaziland},
 year = {2014}
}
,@book{2817,
 address = {Cape Town},
 author = {Branch, W.R.},
 publisher = {Struik Publishers},
 title = {Field Guide to Snakes and other Reptiles of Southern Africa. Third Edition},
 year = {1998}
}
,@book{10242,
 address = {Parklands, South Africa},
 author = {Broadley, D.G.},
 publisher = {Jonathan Ball and Ad. Donker Publishers},
 title = {FitzSimons' Snakes of Southern Africa},
 year = {1990}
}
,@book{110159014,
 address = {San Diego, San Francisco, New York, Boston, London},
 author = {Spawls, S., Howell, K.M., Drewes, R.C. and Ashe, J.},
 publisher = {Academic Press, Elsevier Science},
 title = {A Field Guide to the Reptiles of East Africa},
 year = {2002}
}
,@book{13292706,
 address = {Frankfurt},
 author = {Broadley, D.G., Doria, C.T. and Wigge, J.},
 publisher = {Edition Chimaira},
 title = {Snakes of Zambia. An Atlas and Field Guide},
 year = {2003}
}
,]