Cita APA (7a ed.)

Realuyo, Z. M., & del Pan-Ilarde, I. (1999). Basic concepts in earth science. JMC Press.

Cita Chicago Style (17a ed.)

Realuyo, Zenaida Montecastro, y Isabelina del Pan-Ilarde. Basic Concepts in Earth Science. Manila: JMC Press, 1999.

Cita MLA (9a ed.)

Realuyo, Zenaida Montecastro, y Isabelina del Pan-Ilarde. Basic Concepts in Earth Science. JMC Press, 1999.