APA引文

Rolls, J. J. (1992). Estimating soil erosion in the middle hills of Nepal. UMI ProQuest.

Chicago Style (17th ed.) Citation

Rolls, Jerry John. Estimating Soil Erosion in the Middle Hills of Nepal. Michigan: UMI ProQuest, 1992.

MLA引文

Rolls, Jerry John. Estimating Soil Erosion in the Middle Hills of Nepal. UMI ProQuest, 1992.

警告：这些引文格式不一定是100％准确.