The Humicolous fauna of South Africa: Pselaphidae and Catopidae (coleoptera).
Pretoria: Transvaal Museum, 1964. Octavo, text illustrations, publisher's cloth. More
Pretoria: Transvaal Museum, 1964. Octavo, text illustrations, publisher's cloth. More
Bandung: Diterbitkan untuk djawatan Penjelidikan Pertanian di Bogor oleh W. van Hoeve. 1953. Quarto, colour plates, signature, publisher's boards. More