Anual report of the executive director / 
 United Nations Environment Programme environmental data report 
United Nations Environment Programme. 
 - Nairobi,Kenya :  UNEB,  1987- 
 - v. :  ill. ;  28 cm. 
<br/><br/><label>ISSN: </label>10101268 
<br/><br/><label>Subjects--Corporate Names: </label><br/>United Nations Environment Programme--Periodicals.<br/>United Nations Environment Programme.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental monitoring--Statistics--Periodicals.<br/>Environmental sciences--Periodicals.<br/>Environmental sciences--Statistics--Periodicals.
<br/><br/><label>LC Class. No.: </label>GE1  / .E535 
<br/><br/><label>Dewey Class. No.: </label>363.7/063