Cita APA (7th ed.)

Barrios, F. L., Farrales, S. D., & Espina, M. A. A. (1992). An Ecological island resort in Palawan.

Cita Chicago (17th ed.)

Barrios, Farah L., Stella D. Farrales, i Mary Ann A. Espina. An Ecological Island Resort in Palawan. 1992.

Cita MLA (9th ed.)

Barrios, Farah L., et al. An Ecological Island Resort in Palawan. 1992.