Ed. INRA-SAD, Paris, 1993. 334 p.
Kluwer Academic Pub. Dordrecht, 1992. 248 p.
Ed. INRA Publications, Versailles, 1990. 366 p.
Revue Economie Rurale, (SFER), Paris 1990
Ed. Fayard. Paris. 1995. 502 pages.