Aa.Vv, Aa.VvAguilar Mora, JorgeBelén Jacoba MartÃn, Rosa Iglesias MolinaBerne, EricBlanco, CarlosBrockman, JohnBurckhardt, TitusCamposCarson, RachelCastellanos, NazarethCervantes, MartaCRUZ MUNDET, JOSE RAMONCubero Salmerón, José IgnacioDick, Philip K.Engels, FriedrichEsquivel, GuadalupeFerreira, Pedro G.Garcilaso de la VegaGeorge R. R. MartinGiddens, AnthonyGoldman, FranciscoGonzález, Dra.OlgaGuerrero, FabrizzioHamblin, JamesHARRIS, MARVINHawking, StephenHernandez, AnabelHoms, RicardoImmanuel WallersteinInduráin, JordiKhong, RachelLaveaga, GerardoLorimer, DavidLouise SpilsburyMacaulay, DavidMax WeberNietzsche, FriedrichOrtiz Medrano, AlejandraPániker, SalvadorPérez Montiel, HéctorR.R. Martin, GeorgeRamÃrez Regalado, VÃctor ManuelRovelli, CarloSagan, CarlSeth, AnilSin AutorTyson, Neil deGrasseTzu, SunUnescoValdés, CarolinaVariosVarios autoresVV. AA.