Tilley, H. (2011). Africa as a living laboratory: Empire, development, and the problem of scientific knowledge, 1870-1950. University of Chicago Press.

Tilley, Helen. Africa as a Living Laboratory: Empire, Development, and the Problem of Scientific Knowledge, 1870-1950. Chicago: University of Chicago Press, 2011.

Tilley, Helen. Africa as a Living Laboratory: Empire, Development, and the Problem of Scientific Knowledge, 1870-1950. University of Chicago Press, 2011.