Piaget, J. (1970). Main trends in inter-disciplinary research. Harper & Row.
Chicago Edition CitationPiaget, Jean. Main Trends in Inter-disciplinary Research. New York: Harper & Row, 1970.
Cita MLAPiaget, Jean. Main Trends in Inter-disciplinary Research. Harper & Row, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.