APA (7th ed.) Citation

Del Valle, G. A., Quilantang, R. J., Rosel, A. J., Hong, F. L., & Luis, P. C. (1993). The Center for research and development of volcanic materials for building.

Chicago Style (17th ed.) Citation

Del Valle, Glenn A., Romher J.T Quilantang, Albert J.S Rosel, Froilan L. Hong, and Prosperidad C. Luis. The Center for Research and Development of Volcanic Materials for Building. 1993.

MLA (9th ed.) Citation

Del Valle, Glenn A., et al. The Center for Research and Development of Volcanic Materials for Building. 1993.