Tombs, Thetis A. Ann and her grandfather / twenty-four dialogues written by Thetis A. Tombs. - Madrid : Alhambra, [1960] - 136 p. ; 22 cm. English by Radio Teaches the World. Subjects--Topical Terms: Lengua inglesa---Ejercicios prácticos. Universal Decimal Class. No.: 811.111(076.5)