Dokumentuaren aipamena

APA (7th ed.) Zitazioa
Oliveira, J. A. P. d. (2012). “Rio+20: What we can learn from the process and what is missing”. Cadernos EBAPE.BR.
Chicago Style (17th ed.) Zitazioa
Oliveira, Jose A. Puppim de. "“Rio+20: What We Can Learn from the Process and What Is Missing”." Cadernos EBAPE.BR 2012.
MLA (9th ed.) Zitazioa
Oliveira, Jose A. Puppim de. "“Rio+20: What We Can Learn from the Process and What Is Missing”." Cadernos EBAPE.BR, 2012.
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