Ámbito geográfico
ARGENTINA
451
LATIN AMERICA
247
UNITED STATES
152
DEVELOPING COUNTRIES
92
BRAZIL
46
CHILE
33
SOVIET UNION
32
CHINA
30
GREAT BRITAIN
30
MEXICO
26
GERMANY
24
CANADA
22
AMÉRICA LATINA
18
CARIBBEAN AREA
18
COLOMBIA
18
EUROPE
18
EUROPE, EASTERN
17
JAPAN
14
PERU
14
EUROPEAN UNION COUNTRIES
13
FRANCE
13
ESTADOS UNIDOS
12
SPAIN
11
EUROPEAN ECONOMIC COMMUNITY COUNTRIES
10
INDIA
10
RUSSIA (FEDERATION)
10
SOUTHERN CONE OF SOUTH AMERICA
10
VENEZUELA
9
AMÉRICA LATINA
7
EAST ASIA
7
PAÍSES EN DESARROLLO
7
AUSTRALIA
6
BRASIL
6
COMMUNIST COUNTRIES
6
CUBA
6
GERMANY (WEST)
6
COSTA RICA
5
ASIA
4
BOLIVIA
4
BUENOS AIRES (PROVINCE)
4
ECUADOR
4
ITALY
4
URUGUAY
4
AFRICA
3
ASIA, SOUTHEASTERN
3
BUENOS AIRES (ARGENTINA : PROVINCE)
3
CENTRAL AMERICA
3
CÓRDOBA (ARGENTINA : PROVINCE)
3
EUROPA ORIENTAL
3
EUROPE, SOUTHERN
3
más ...