Study Week on A Modern Approach to the Protection of the Environment  November 2-7, 1987 
edited by G.B. Marini-Bettòlo. 
 - Città del Vaticano  Pontificia Academia Scientiarum  1989. 
 - xxi, 606 p.  ill.  25 cm. 
 - Pontificiae Academiae Scientiarum scripta varia  75 .
<br/><br/> Title on spine: A modern approach to the protection of the environment. 
<br/><br/>Includes bibliographical references and indexes. 
<br/><br/><label>ISBN: </label>8877610336 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental protection--Congresses.<br/>Conservation of natural resources--Congresses.