Cruz, C. J. (1973). Sampling studies in the survey of households in selected barrios in the Philippines [microform]. Photoduplication Service.
芝加哥风格引文Cruz, Carmelita J. Sampling Studies in the Survey of Households in Selected Barrios in the Philippines [microform]. Quezon City: Photoduplication Service, 1973.
MLA引文Cruz, Carmelita J. Sampling Studies in the Survey of Households in Selected Barrios in the Philippines [microform]. Photoduplication Service, 1973.
警告：这些引文格式不一定是100％准确.