Tracana, R. B., Varanda, I., Viveiros, S., & Carvalho, G. S. d. (2012). Urban and rural primary school pupils' conceptions about the respiratory system and smoking.
Chicago Style (17th ed.) CitationTracana, Rosa Branca, Isabel Varanda, Sara Viveiros, and Graça Simões de Carvalho. Urban and Rural Primary School Pupils' Conceptions About the Respiratory System and Smoking. 2012.
MLA (8th ed.) CitationTracana, Rosa Branca, et al. Urban and Rural Primary School Pupils' Conceptions About the Respiratory System and Smoking. 2012.
Warning: These citations may not always be 100% accurate.