MacQueen, J. (2013). A geographical survey of Africa: Its rivers, lakes, mountains, productions, states, populations, &c. with a map of an entirely new construction, to which is prefixed a letter to Lord John Russell regarding the slave trade and the improvement of Africa. Routledge.

MacQueen, James. A Geographical Survey of Africa: Its Rivers, Lakes, Mountains, Productions, States, Populations, &c. with a Map of an Entirely New Construction, to Which Is Prefixed a Letter to Lord John Russell Regarding the Slave Trade and the Improvement of Africa. London ; New York: Routledge, 2013.

MacQueen, James. A Geographical Survey of Africa: Its Rivers, Lakes, Mountains, Productions, States, Populations, &c. with a Map of an Entirely New Construction, to Which Is Prefixed a Letter to Lord John Russell Regarding the Slave Trade and the Improvement of Africa. Routledge, 2013.