Langit, R. B. (1997). Pregnant, baby monkeys were killedtoo. Manila Times.
Chicago-viite (17. p.)Langit, Richel B. "Pregnant, Baby Monkeys Were Killedtoo." Manila Times 1997.
MLA-viite (9. p.)Langit, Richel B. "Pregnant, Baby Monkeys Were Killedtoo." Manila Times, 1997.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.