- Author: N. E. Collinge
- Language: English
- Year: 1971
- Author: Joann Vogt
- Language: German
- Year: 1974
- Author: Joseph P. O’Rourke
- Language: English
- Year: 1974
- Author: William S. Cooper
- Language: English
- Year: 1974
- Author: Dragan Milivojevič
- Language: English
- Year: 1970
- Author: Alejandro Ortiz, Ernesto Zierer
- Language: English
- Year: 1968
- Author: Mary R. Haas
- Language: English
- Year: 1978
- Author: R. S. Meyerstein
- Language: English
- Year: 1974
Propositional logical thinking and comprehension of language connectives: A developmental analysis
pdf
- Author: Scott G. Paris
- Language: English
- Year: 1975
- Author: Jost Trier (editor), Antony van der Lee (editor), Oskar Reichmann (editor)
- Language: German
- Year: 1973