Elazegui, D. D., & Liguton, J. P. (2002). Law of nature: Command-and--control approach. Philippine Star.
Cita Chicago (17th ed.)Elazegui, Dulce D., i Jennifer P.T Liguton. "Law of Nature: Command-and--control Approach." Philippine Star 2002.
Cita MLA (9th ed.)Elazegui, Dulce D., i Jennifer P.T Liguton. "Law of Nature: Command-and--control Approach." Philippine Star, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.