Ryan, J. Et Al. 2013. Phosphorus in Low-Input Dryland Agriculture: The Perspective from Syria. COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS , vol.44, no.16 , 2378-2392.

Ryan, J., İBRİKÇİ, H., Rashid, A., & Sommer, R., (2013). Phosphorus in Low-Input Dryland Agriculture: The Perspective from Syria. COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS , vol.44, no.16, 2378-2392.

Ryan, John Et Al. "Phosphorus in Low-Input Dryland Agriculture: The Perspective from Syria," COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS , vol.44, no.16, 2378-2392, 2013

Ryan, John Et Al. "Phosphorus in Low-Input Dryland Agriculture: The Perspective from Syria." COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS , vol.44, no.16, pp.2378-2392, 2013

Ryan, J. Et Al. (2013) . "Phosphorus in Low-Input Dryland Agriculture: The Perspective from Syria." COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS , vol.44, no.16, pp.2378-2392.

@article{article, author={John Ryan Et Al. }, title={Phosphorus in Low-Input Dryland Agriculture: The Perspective from Syria}, journal={COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS}, year=2013, pages={2378-2392} }