la descripción y los dibujos que sirven de base para la publicación

Accounting	9
Agriculture	39
Animal husbandry	6
Art	1
Astronautics	5
Banking	5
Business	5
Chemistry	156
Coal	2
Commerce	34
Communications	29
Construction	58
Corporate governance	2
Criminal law	47
Cultural studies	14
Customs	13
Data processing	14
Demography	5
Earth sciences	20
Ecology	9
Economy	591
Education	44
Electronics	8
Employment	6
Energy industry	31
Environment	328
European Union	6
Finances	173
Fish farming pisciculture	36
Food industry	5
General	763
Geography	12
Government, administration and public services	7
Health care	117
Hobbies and pastimes	3
Human rights activism	150
Immigration and citizenship	83
Industry	7
Information technology	51
Insurance	17
International law	15
International trade	23
Investment	6
Labor law	10
Law	312
Life sciences	47
Marketing	3
Materials science	2
Mathematics	276
Mechanic engineering	15
Medical	57
Metallurgy	6
Mexican	8
Microsoft	337
Mineral products	2
Municipal planning	5
Natural resourses and wildlife conservation	7
Natural sciences	21
Nuclear and fusion power	6
Nuclear physics	21
Obsolete / dated	125
Patents	996
Pharmacy and pharmacology	18
Physical sciences	7
Politics	263
Private international law	4
Procedural law	63
Research and development	10
Scientific	4
Social science	81
Sociology	7
Statistics	55
Sugar production	3
Taxes	30
Technology	11
Trade unions	9
Transport	163
United Nations	38
Waste management	1
Wood processing	1
Work flow	3