APA

Ryel R. J., Barnes P. W., Beyschlag W., Caldwell M. M. & Flint S. D. (1990). Plant competition for light analyzed with a multispecies canopy model : I. Model development and influence of enhanced UV-B conditions on photosynthesis in mixed wheat and wild oat canopies. : Oecologia.

Chicago

Ryel R J, Barnes P W, Beyschlag W, Caldwell M M and Flint S D. 1990. Plant competition for light analyzed with a multispecies canopy model : I. Model development and influence of enhanced UV-B conditions on photosynthesis in mixed wheat and wild oat canopies. : Oecologia.

Harvard

Ryel R. J., Barnes P. W., Beyschlag W., Caldwell M. M. and Flint S. D. (1990). Plant competition for light analyzed with a multispecies canopy model : I. Model development and influence of enhanced UV-B conditions on photosynthesis in mixed wheat and wild oat canopies. : Oecologia.

MLA

Ryel R J, Barnes P W, Beyschlag W, Caldwell M M and Flint S D. Plant competition for light analyzed with a multispecies canopy model : I. Model development and influence of enhanced UV-B conditions on photosynthesis in mixed wheat and wild oat canopies. : Oecologia. 1990.