Time related changes of organic and inorganic nitrogen and other interrelationships in the southern north sea of the Dutch coast: a statistical analysis text Amsterdam] International Council for the Exploration of the Sea 1984 Ind 24 p.: ill.; 30 cm. 24 p.: ill.; 30 cm. PIETERS, H. COASTS NITROGEN COMPOUNDS 546.17 INLIS000000000003971 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)