APA aipamena

Yamao, Y., Gutierrez, M. S., Macam, V. R. J., Pagbilao, D. S., & Lejano, B. A. (1986). A survey of properties of concrete aggregates from different sources near metro manila. Philippine Engineering Journal.

Chicago Style aipamena

Yamao, Yoshihide, Marte SM Gutierrez, Victor R. Jr Macam, Dominador S. Pagbilao, and Bernardo A. Lejano. "A Survey of Properties of Concrete Aggregates from Different Sources Near Metro Manila." Philippine Engineering Journal 1986.

MLA aipamena

Yamao, Yoshihide, et al. "A Survey of Properties of Concrete Aggregates from Different Sources Near Metro Manila." Philippine Engineering Journal, 1986.