Não informado. (1923). Entomology memoirs. Republic of South Africa, Department of Agriculture.
Chicago-referens (17:e uppl.)Não informado. Entomology Memoirs. Pretoria, Africa do Sul: Republic of South Africa, Department of Agriculture, 1923.
MLA-referens (8:e uppl.)Não informado. Entomology Memoirs. Republic of South Africa, Department of Agriculture, 1923.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.