怎么把作者译名后的等改成etal啊
宋雪英,宋玉芳,孙铁珩,等. 土壤原生动物对环境污染的生物指示作用[J]. 应用生态学报. 2004(10): 1979-1982. [Xueying Song,Yufang Song,Tieheng Sun,等. Bio-indicating function of soil protozoa to environmental pollution[J]. Chinese Journal of Applied Ecology. 2004,(10):1979-1982.]