Cita APA (7th ed.)

Cromley, E. K., & McLafferty, S. (2002). GIS and public health. Guilford Press.

Cita Chicago (17th ed.)

Cromley, Ellen K., i Sara McLafferty. GIS and Public Health. New York: Guilford Press, 2002.

Cita MLA (8th ed.)

Cromley, Ellen K., i Sara McLafferty. GIS and Public Health. Guilford Press, 2002.