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THE LIFE OF BEES AND THE LIFE OF THERMES (Committees or white ants). Maeterlinck, Mauritius -
TELEPHONE NETWORK OF THE GUIPÚZCOA PROVINCE. Echaide, Ignacio María -
A PROJECT IN THE OLD PART. Meditation on the future of this urban complex. Encio Cortazar, Juan M. -
SPANISH PORTS (THEIR HISTORICAL, TECHNICAL AND ECONOMIC ASPECTS). Various Authors -
ELEMENTS OF ARITHMETIC. Álvarez de la Escosura, Sabino -
FOUNDATIONS FOR THE INTEGRAL DEVELOPMENT OF NAVACERRADA AND THE COMMUNITIES OF THE SIERRA DE GUADARRAMA. Bernal, J. Gustavo -
THE NUMERICAL REVOLUTION. Mas Tayeda, Ramón -
NOTIONS OF ARITHMETIC AND MENTAL CALCULATION EXERCISES. YE -
PRIVATE LIFE OF DINOSAURS. Blaschke, Jorge / Palao Pons, Pedro -
PHYSICS PROBLEMS. Goded, A. -
NATIONAL TELECOMMUNICATIONS EXHIBITION. I CENTENARY OF SPANISH TELECOMMUNICATIONS -
EVEREST EXERCISES AND PROBLEMS. Fifth Course (5). Sabugo Pintor, Ángel / Marcos González, Gregorio -
EVEREST EXERCISES AND PROBLEMS. Third course (3). Sabugo Pintor, Ángel / Marcos González, Gregorio -
STUDY ON THE FIRST CENTURIES OF URBAN DEVELOPMENT OF OVIEDO. Rodríguez Balbín, Herminia (Dedicated) -
THE DOUBLE PROPELLER. Watson, James D. -
GENERAL SPECIFICATION OF OPTIONAL CONDITIONS FOR THE EXECUTION OF RIGID PAVEMENTS -
MATERIALS STUDY IV: HYDRAULIC BINDERS. Soria, F. (Dedicated) -
EVOLUTION OF REINFORCED CONCRETE TECHNIQUE IN THE LAST TWENTY-FIVE YEARS. Various Authors -
WHITE ARTIFICIAL PORTLAND CEMENT AND ITS APPLICATIONS. Rezola Izaguirre, Julián -
GEOMORPHOLOGICAL OBSERVATIONS ON THE TIBETAN SIDE OF EVEREST. Spanish Expedition to Qomolangma, 1986 -
MANUAL OF EXPLOSIVES FOR MILITARY USES. Morcillo and Munera, Bruno -
NAVAL ARCHITECTURE. Part One, Volume II: Ship Theory. Iglesias, Emigdio -
THE LIFE OF BUTTERFLIES (Narratives of a hunter). Fernandez, Ambrosio -
THE INSECTICIDES. Dajoz, Roger