Books Netherlands Orange Book; summary of the principal matters dealt with by the Ministry of foreign affairs in connection with the state of war up till November 1939 (1940)
[archiveorg NetherlandsOrangeBook width=560 height=384 frameborder=0 webkitallowfullscreen=true mozallowfullscreen=true]
https://archive.org/download/NetherlandsOrangeBook/NetherlandsOrangeBook3.pdf