De Villiers, C., & Metrowich, F. (1975). The communist strategy. Department of information.
芝加哥风格引文De Villiers, C.F, 与 F.R Metrowich. The Communist Strategy. Pretoria: Department of information, 1975.
MLA引文De Villiers, C.F, 与 F.R Metrowich. The Communist Strategy. Department of information, 1975.
警告：这些引文格式不一定是100％准确.