De Heterocera van Sumatra.
Leiden: Voorheen E. J. Brill, 1930. Octavo, 13 coloured plates, text illustrations, partly unopened in titled wrappers. Front cover detached.
Text in Dutch.
Leiden: Voorheen E. J. Brill, 1930. Octavo, 13 coloured plates, text illustrations, partly unopened in titled wrappers. Front cover detached.
Text in Dutch.