Lengyel, P., & Aron, R. (1971). Approaches to the science of socio-economic development. Unesco.
芝加哥风格引文Lengyel, Peter, 与 Raymond Aron. Approaches to the Science of Socio-economic Development. Paris: Unesco, 1971.
MLA引文Lengyel, Peter, 与 Raymond Aron. Approaches to the Science of Socio-economic Development. Unesco, 1971.
警告：这些引文格式不一定是100％准确.