APA aipamena

Peralta, G. L., Ballesteros, F. C. J., & Cepeda, M. L. (1992). Immobilization techniques for toxic sludge. Philippine Engineering Journal.

Chicago Style aipamena

Peralta, Genandrialine L., Feliciano C. Jr Ballesteros, and Marivie L. Cepeda. "Immobilization Techniques for Toxic Sludge." Philippine Engineering Journal 1992.

MLA aipamena

Peralta, Genandrialine L., et al. "Immobilization Techniques for Toxic Sludge." Philippine Engineering Journal, 1992.