APA
Alvarez Gutiérrez F. J., Soto Campos G., Vellisco García A., Pérez Petit M., Del Castillo D., Calderón Osuna E., Sánchez Gómez J., Castillo P. & Castillo Gómez J. (19990901). [School-age smoking in the province of Seville: results from the first phase of an anti-smoking campaign]. : Archivos de bronconeumologia.
Chicago
Alvarez Gutiérrez F J, Soto Campos G, Vellisco García A, Pérez Petit M, Del Castillo D, Calderón Osuna E, Sánchez Gómez J, Castillo P and Castillo Gómez J. 19990901. [School-age smoking in the province of Seville: results from the first phase of an anti-smoking campaign]. : Archivos de bronconeumologia.
Harvard
Alvarez Gutiérrez F. J., Soto Campos G., Vellisco García A., Pérez Petit M., Del Castillo D., Calderón Osuna E., Sánchez Gómez J., Castillo P. and Castillo Gómez J. (19990901). [School-age smoking in the province of Seville: results from the first phase of an anti-smoking campaign]. : Archivos de bronconeumologia.
MLA
Alvarez Gutiérrez F J, Soto Campos G, Vellisco García A, Pérez Petit M, Del Castillo D, Calderón Osuna E, Sánchez Gómez J, Castillo P and Castillo Gómez J. [School-age smoking in the province of Seville: results from the first phase of an anti-smoking campaign]. : Archivos de bronconeumologia. 19990901.