Mardid, Feb 19, SPA -- The prime minister made an emotional appeal for a massive turnout in Spain's referendum Sundayon the European Union constitution _ the document's firsttest at grass-roots level _ saying it will make thecontinent safer and help fight terrorism. Jose Luis Rodriguez Zapatero concluded campaigning for thereferendum on Friday night, saying the constitution was asimportant for Spaniards as the one they approved for theirown country in 1978, restoring a democratic charter threeyears after the death of Gen. Francisco Franco. The referendum is nonbinding, with Parliament having the final say. "Now we have another historic opportunity and must notsquander it," Zapatero told a rally in Madrid. "We cannotmiss the opportunity to be protagonists and set the coursefor all Europeans with a massive 'yes.'" Spain will be the first of at least nine EU countries tohold a referendum on the constitution, designed tostreamline the EU's decision-making as the bloc expandseastward, making it more efficient and giving it globalclout on a par with its economic might. Both of Spain's main parties back the constitution and itis expected to be approved in the referendum. Campaigningwas banned on Saturday, with the day before the voteconsidered a day of reflection.--SPA1452 Local Time 1152 GMT www.spa.gov.sa/240644