Tullio Levi-Civita A simplified presentation of Einstein's unified field equations

Anthony Brooke The facts about Sarawak: a documented account of the cession to Britain in 1946

Zeijlstra, H.H. Melchior Treub, pioneer of a new era in the history of the Malay Archipelago

Oosterbaan, J.C., Roest, F.C. Een ketting van boeken

Susan Atkins wij vermoordden Sharon Tate