APA (7th ed.) Citation

Lander, R., Lander, J., & Hallett, R. (1965). The Niger journal of Richard and John Lander. Praeger.

Chicago Style (17th ed.) Citation

Lander, Richard, John Lander, and Robin Hallett. The Niger Journal of Richard and John Lander. New York: Praeger, 1965.

MLA (9th ed.) Citation

Lander, Richard, et al. The Niger Journal of Richard and John Lander. Praeger, 1965.