Cita APA (7a ed.)
ebrary, Inc, & Heckrath, G. (2005). Tools for assessing phosphorus loss from Nordic agriculture. Nordic Council of Ministers.
Cita Chicago Style (17a ed.)
ebrary, Inc, y Goswin Heckrath. Tools for Assessing Phosphorus Loss from Nordic Agriculture. Copenhagen: Nordic Council of Ministers, 2005.
Cita MLA (9a ed.)
ebrary, Inc, y Goswin Heckrath. Tools for Assessing Phosphorus Loss from Nordic Agriculture. Nordic Council of Ministers, 2005.
Precaución: Estas citas no son 100% exactas.