Source
AC	General Directorate of Civil Aviation (Ministry of Public Works)
AEAT	State Tax Administration Agency (Ministry of Economy and Treasury)
AEMET	Spanish State Meteorological Agency (Ministry of the Environment and Rural and Marine Affairs)
BE	Bank of Spain
CGPJ	General Council of the Judiciary Branch
CSD	Higher Sports Board (Presidency of the Government)
CyT	Post Office
DGIP	General Directorate of Penal Institutions (Home Office)
DGP	Police General Directorate (Home Office)
DGT	Spanish Traffic Authority (Home Office)
IET	Institute for Tourist Studies (Ministry of Industry, Tourism and Trade)
IGN	National Geographic Institute General Directorate (Ministry of Public Works)
INAE	National Institute of Scenary Arts and Music (Ministry of Culture)
INE	National Institute of Statistics (Ministry of Economy and Treasury)
INEM	Public Employment Services (Ministry of Labour and Immigration)
ISCIII	Carlos III Institute of Health (Ministry of Science and Innovation )
LAE	State Lotteries and Gaming (Ministry of Economy and Treasury)
MARM	Ministry of the Environment and Rural and Marine Affairs
MCU	Ministry of Culture
MD	Ministry of Defence
MEC	Ministry of Education
MEH	Ministry of Economy and Treasury
MF	Ministry of Public Works
MITYC	Ministry of Industry, Tourism and Trade
MI	Ministry of the Interior
MSC	Ministry de Health and Social Policy
MTIN	Ministry of Labour and Immigration
MV	Ministry of Housing
PE	Spanish Port System (Ministry of Public Works)
RN	General Directorate for Registers and Notaries (Ministry of Justice)
SGAE	General Association of Writers and Publishers
SS	Information from more than two sources
International sources
FAO	Food and Agriculture Organization of the United Nations
ILO	International Labour Organization
ITU	International Telecommunication Union
OECD	Organisation for Economic Co-operation and Development
UN	United Nations
UNESCO	United Nations Educational, Scientific and Cultural Organization
WB	World Bank
WHO	World Health Organization
WTO	World Tourism Organization