Grengia, E. M. (1979). Soil-cement: Its structural characteristics and suitability as a low-cost housing material [microform]. Photoduplication Service. University of the Philippines Library.
芝加哥风格引文Grengia, Epifanio M. Soil-cement: Its Structural Characteristics and Suitability as a Low-cost Housing Material [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1979.
MLA引文Grengia, Epifanio M. Soil-cement: Its Structural Characteristics and Suitability as a Low-cost Housing Material [microform]. Photoduplication Service. University of the Philippines Library, 1979.
警告：这些引文格式不一定是100％准确.