Laet, Sigfried J. de.

History of humanity. by: Laet, Sigfried J. de.; International Commission for a History of the Scientific and Cultural Development of Mankind., History of mankind.; International Commission for the New Edition of the History of the History of the Scientific and Cultural Development of Mankind. (Language materials, printed)

History of humanity : = Scientific and cultural development. vol IV. from the seventh to the sixteenth century / by: Laet, Sigfried J. de.; Al-Bakhit, M. A.; Bazin, L.; Cissoko, S. M.; International Commission for a History of the Scientific and Cultural Development of Mankind., History of mankind. (Language materials, printed)

History of humanity : = Scientific and cultural development. volume V. from the sixteenth to the eighteenth century / by: Laet, Sigfried J. de.; Burke, Peter.; Inalcik, Halil.; International Commission for a History of the Scientific and Cultural Development of Mankind., History of mankind. (Language materials, printed)