Principi di informatica / A. I. Michajlov, A. I. Cernyj, R. S. Giljarevskij ; prefazione di A. N. Nesmejanov

Mexican history Diego Rivera’s : frescoes in the National Palace and elsewhere in Mexico City : a descriptive guide-book of the National Palace and its royal rooms, with 45 illustrations, 34 in inique color cromolithographs / [a cura di] R.S. Silva E.