Preface
Theory of Probability (1970)
Bruno de Finetti was an Italian probabilist statistician and actuary, noted for the "operational subjective" conception of probability. The classic exposition of his distinctive theory is the 1937 "La prévision: ses lois logiques, ses sources subjectives," which discussed probability founded on the coherence of betting odds and the consequences of exchangeability. Wikipedia
Preface
Theory of Probability (1970)