APA引文

Tirado Sánchez, H. (1979). Agro-economic evaluation of two crop systems established with zero tilling in Turrialba, Costa Rica.

Citación estilo Chicago

Tirado Sánchez, H. Agro-economic Evaluation of Two Crop Systems Established With Zero Tilling in Turrialba, Costa Rica. 1979.

MLA引文

Tirado Sánchez, H. Agro-economic Evaluation of Two Crop Systems Established With Zero Tilling in Turrialba, Costa Rica. 1979.

警告：這些引文格式不一定是100％准確.