Altarejos, R. G. (1990). Planet earth overloaded with human beings. Malaya.
芝加哥风格引文Altarejos, Randolph G. "Planet Earth Overloaded with Human Beings." Malaya 1990.
MLA引文Altarejos, Randolph G. "Planet Earth Overloaded with Human Beings." Malaya, 1990.
警告：这些引文格式不一定是100％准确.