Nitrogen - metabolism, Air Pollutants - metabolism, Nitrates - analysis, Nitrogen Compounds - metabolism, Nitrogen - metabolism, Air Pollutants - metabolism, Nitrates - analysis, Nitrogen Compounds - metabolism
Feces - parasitology, Helminths - classification, Intestinal Diseases, Helminths - isolation & purification, Helminthiasis - ethnology, Parasitic - ethnology, Anthelmintics - therapeutic use, Minority Groups - statistics & numerical data, Helminthiasis - drug therapy, Helminths - drug effects, Parasitic - drug therapy, Praziquantel - therapeutic use, Rural H...
Dewey: 639.2, 639.2, Aquaculture Climatic factors., Fisheries Climatic factors.
Archaeology, Editors, Cultural heritage
Human ecology, Sustainable development, Environmental Economics, development, etc, Handbooks, manuals, BUSINESS & ECONOMICS, Estudio y enseñanza, Estudio y enseñanza