APA
Placencia M. E., . (2007). Research on Politeness in the Spanish-speaking World. : Psychology Press.
Chicago
Placencia María Elena, . 2007. Research on Politeness in the Spanish-speaking World. : Psychology Press.
Harvard
Placencia M. E., . (2007). Research on Politeness in the Spanish-speaking World. : Psychology Press.
MLA
Placencia María Elena, . Research on Politeness in the Spanish-speaking World. : Psychology Press. 2007.