Annals of the South African Museum. Annale van die Suid-Afrikaanse Museum - South African Museum. (South African Museum, 1908)

Report to the government of Ceylon on the pearl oyster fisheries of the gulf of Manaar - Royal Society (Great Britain) (1905)

Report to the government of Ceylon on the pearl oyster fisheries of the gulf of Manaar - Royal Society (Great Britain) (1905)

Report to the government of Ceylon on the pearl oyster fisheries of the gulf of Manaar - Royal Society (Great Britain) (1905)