An introduction to deductive logic

by Leblanc, Hugues 1924-, Leblanc, Hugues 1924-
Published 1955

Statistical and inductive probabilities

by Leblanc, Hugues, 1924-
Published 1962

Lógica matemática /

by Ferrater Mora, José 1912-1991, Ferrater Mora, José 1912-1991, Leblanc, Hugues 1924-
Published 1962

Lógica matemática /

by Ferrater Mora, José 1912-1991, Ferrater Mora, José 1912-1991, Leblanc, Hugues 1924-
Published 1967

Lógica matemática /

by Ferrater Mora, José, 1912-1991
Published 1955