Dwivedi, A., & Gupta, G. (1993). Afforestation of arid lands. Scientific.
芝加哥风格引文Dwivedi, A.P, 与 G.N Gupta. Afforestation of Arid Lands. Jodhpur: Scientific, 1993.
MLA引文Dwivedi, A.P, 与 G.N Gupta. Afforestation of Arid Lands. Scientific, 1993.
警告：这些引文格式不一定是100％准确.