Purdue OWL: APA Overview and Workshop APA Overview and Workshop Purdue University: Taller de estilo APA http://owl.english.purdue.edu/owl/resource/664/1/ APA Style Overview & Workshop Purdue Online Writing Lab: APA Style Workshop Purdue Online Writing Lab: APA Style Workshop Purdue Online Writing Lab: APA Style Workshop https://owl.english.purdue.edu/owl/resource/664/1/ Purdue OWL: APA Overview and Workshop