APA
Webster J. B., Boahen A. A., . (1967). The revolutionary years: West Africa since 1800. London: Longmans.
Chicago
Webster J B, Boahen A Adu, . 1967. The revolutionary years: West Africa since 1800. London: Longmans.
Harvard
Webster J. B., Boahen A. A., . (1967). The revolutionary years: West Africa since 1800. London: Longmans.
MLA
Webster J B, Boahen A Adu, . The revolutionary years: West Africa since 1800. London: Longmans. 1967.