APA

Stenberg M., Ulén B., Söderström M., Roland B., Delin K. & Helander C. (20121226). Tile drain losses of nitrogen and phosphorus from fields under integrated and organic crop rotations. A four-year study on a clay soil in southwest Sweden. : The Science of the total environment.

Chicago

Stenberg Maria, Ulén Barbro, Söderström Mats, Roland Björn, Delin Karl and Helander Carl-Anders. 20121226. Tile drain losses of nitrogen and phosphorus from fields under integrated and organic crop rotations. A four-year study on a clay soil in southwest Sweden. : The Science of the total environment.

Harvard

Stenberg M., Ulén B., Söderström M., Roland B., Delin K. and Helander C. (20121226). Tile drain losses of nitrogen and phosphorus from fields under integrated and organic crop rotations. A four-year study on a clay soil in southwest Sweden. : The Science of the total environment.

MLA

Stenberg Maria, Ulén Barbro, Söderström Mats, Roland Björn, Delin Karl and Helander Carl-Anders. Tile drain losses of nitrogen and phosphorus from fields under integrated and organic crop rotations. A four-year study on a clay soil in southwest Sweden. : The Science of the total environment. 20121226.