Não informado. (1923). Entomology memoirs. Republic of South Africa, Department of Agriculture.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Entomology Memoirs. Pretoria, Africa do Sul: Republic of South Africa, Department of Agriculture, 1923.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Entomology Memoirs. Republic of South Africa, Department of Agriculture, 1923.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.