Main trends in inter-disciplinary research /

• Main Author: Piaget, Jean, 1896-1980 (συγγραφέας)
• Format: Book
• Language: English
• Published: London : Allen & Unwin, 1973.
• Series: Main trends in the social sciences 5
• Subjects: Κοινωνικές επιστήμες > Έρευνα