Jorge Alfonso Sierra Quintero

Robert Oppenheimer, Howard Carter, Nikola Tesla, Marie Curie, Santiago Ramon y Cajal, St. John Bosco - A Short Biography Of Great People In History, Vol. 3 (Unabridged)

Albert Einstein, Alexander Fleming, Sigmund Freud, Mahatma Gandhi - A Short Biography Of Great People In History, Vol. 7 (Unabridged)

John Kennedy, Mother Theresa of Calcutta, Agatha Christie, Franklin Chang, Carlos Fuentes - A Short Biography Of Great People In History, Vol. 2 (Unabridged)