Castro, P. A. (2009). Enviro facts that are not: What you heard vs. what's the truth. Gen G Magazine.
Chicago-referens (17:e uppl.)Castro, Philip A. "Enviro Facts That Are Not: What You Heard Vs. What's the Truth." Gen G Magazine 2009.
MLA-referens (9:e uppl.)Castro, Philip A. "Enviro Facts That Are Not: What You Heard Vs. What's the Truth." Gen G Magazine, 2009.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.