(2008). Environmental epidemiology: Principles and methods / Ray M. Merrill.
Cita Chicago (17th ed.)Environmental Epidemiology: Principles and Methods / Ray M. Merrill. 2008.
Cita MLA (9th ed.)Environmental Epidemiology: Principles and Methods / Ray M. Merrill. 2008.
Atenció: Aquestes cites poden no estar 100% correctes.