Opções reais : a nova análise de investimentos / Eurico Pereira Lopes; pref. Ilídio da Costa Leite de Pinho
TP 2000 : a projection on to the year 2000 compiled by the Ministry of Transport and Public Works of the Netherlands / Ministry of Transport and Public Works
Traité élémentaire de technique actuarielle : l'assurance sur la vie / R. Mantion