Cita APA (7th ed.)
English, P. B. (1998). Childhood asthma along the United States/Mexico border: Hospitalizations and air quality in two California counties.
Cita Chicago (17th ed.)
English, Paul B. Childhood Asthma Along the United States/Mexico Border: Hospitalizations and Air Quality in Two California Counties. 1998.
Cita MLA (9th ed.)
English, Paul B. Childhood Asthma Along the United States/Mexico Border: Hospitalizations and Air Quality in Two California Counties. 1998.
Atenció: Aquestes cites poden no estar 100% correctes.