Cita APA

Grigsby, J., & Heer, D. M. (1994). Society and population (3.).

Chicago Edition Citation

Grigsby, Jills, i David M. Heer. Society and Population. 3. New Delhi, Prentice Hall of India Pvt Ltd, 1994.

Cita MLA

Grigsby, Jills, i David M. Heer. Society and Population. 3. 1994.