Cita APA (7a ed.)

Zito, G. V. (1979). Population and its problems. Human Sciences Press.

Cita Chicago Style (17a ed.)

Zito, George V. Population and Its Problems. New York: Human Sciences Press, 1979.

Cita MLA (8a ed.)

Zito, George V. Population and Its Problems. Human Sciences Press, 1979.