Fertilizers, crop quality and economy :  proceedings of a Study Week on the Use of Fertilizers and their Effect on Crop Growth, with Emphasis on Quality and Economy, April 10th-16th, 1972 / 
edited by V. Hernando Fernaìndez 
 - li, 1415 p. :  il. ;  25 cm. 
<br/><br/> Added t.p.: Semaine d'eìtude sur le theme l'Emploi des fertilisants et leur effet sur l'accroissement des reìcoltes, notamment par rapport a la qualiteì et a l'eìconomie  Held by the Pontifical Academy of Science at its headquarters in Vatican City 
<br/><br/>Incluye referencias bibliográficas e índices 
<br/><br/><label>ISBN: </label>0444412778 (New York) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ABONOS Y FERTILIZANTES--CONGRESOS, CONFERENCIAS, ETC.
<br/><br/><label>Dewey Class. No.: </label>631.5  / F46 1974