Thanks for (irresponsibly) trusting that I could help with your research....
Here's some links to additional resources that might prove useful to prep your write-ups.
Norma técnica del Instituto Colombiano de Normas Técnicas (Icontec):
ICONTEC website
ICONTEC norms summary
American Psychological Association (APA) style:
APA website
APA Quick Reference Guide
Icesi University's Estudios Gerenciales:
Authors' guide
APA citations guide
Also, here's a PDF file with the presentation I used in our workshop.
Cheers!