Journal of an expedition to explore the course and termination of the Niger with a narrative of a voyage down that river to its termination

oleh Lander, Richard
Terbitan: John Murray, 1832

Reis in de binnenlauden van Afrika, gedurende de jaren 1825, 1826 en 1827

oleh Clapperton, Hugo
Terbitan: J. Allart, 1830