APA (7th ed.) Citation

Critchley, C. S. (2001). A physiological explanation for the canopy nitrogen requirement of winter wheat.

Chicago Style (17th ed.) Citation

Critchley, Claire Siân. A Physiological Explanation for the Canopy Nitrogen Requirement of Winter Wheat. 2001.

MLA (9th ed.) Citation

Critchley, Claire Siân. A Physiological Explanation for the Canopy Nitrogen Requirement of Winter Wheat. 2001.

Warning: These citations may not always be 100% accurate.