I'm wondering if anyone has information regarding how to locate the 9 agricultural reports on Angola written by Amilcar Cabral with others in the 1950s (listed below). These were soil maps mostly for sugar and coffee plantations. They are listed in the 1988 IICT edited collection of Cabral's agronomic works, but not re-printed there. And the reports are not listed in any library catalog that I can find. I would be grateful to know if anyone has heard of or seen copies anywhere, or any suggestions of who to contact or where to look.
Many kind regards,