The following papers Were presented during a conference on the relationships between agriculture and industry in socialist countries. This meeting which was organized by Professor Charles Bettelheim, directeur d'études at the Ecole Pratique des Hautes Etudes in the month of May 1965, assembled a great number of French and foreign personalities. The review « Economie Rurale » is happy to present these papers and we want to express our sincere thanks to Professor Bettelheim who has given us - the permission to reproduce them.
