Natural products and the protection of plants proceedings of a study week at the Pontifical Academy of Sciences, October 18-23, 1976 - Study Week on Natural Products and the Protection of Plants (1976 : Vatican City); Marini-Bettolo, G. B. (Giovanni Battista); Pontificia Accademia delle scienze, Rome (Amsterdam Elsevier Science, 1977)
Added t.p.: Semaine d'etude sur le theme produits naturels et la protection des plantes, 18-23 Octobre 1976
Keywords: Plants, Protection of -- Congresses; National products -- Congresses; Organic farming -- Congresses