Cita APA

De Waal, S. W. P. (1978). The Squamata (Reptilia) of the Orange Free State, South Africa. Nasionale Museum.

Citación estilo Chicago

De Waal, S. W. P. The Squamata (Reptilia) of the Orange Free State, South Africa. Bloemfontein: Nasionale Museum, 1978.

Cita MLA

De Waal, S. W. P. The Squamata (Reptilia) of the Orange Free State, South Africa. Nasionale Museum, 1978.