APA (7th ed.) Citation

Malthus, T. R., & Dup quier, J. (1983). Malthus past and present. Academic Press.

Chicago Style (17th ed.) Citation

Malthus, T. R., and Jacques Dup quier. Malthus Past and Present. London [etc.]: Academic Press, 1983.

MLA (9th ed.) Citation

Malthus, T. R., and Jacques Dup quier. Malthus Past and Present. Academic Press, 1983.