Environmental problems : nature, economy, and state /

समान संसाधन

• Environmental pollution and health problems /
  द्वारा: Akhtar, Rais
  प्रकाशित: (1990)
• Environmental problems : impact assessment/
  द्वारा: Trivedi, P. R., और अन्य
  प्रकाशित: (1992)
• Environmental problems in Eastern Europe /
  द्वारा: Carter, Francis W., और अन्य
  प्रकाशित: (1993)
• Environmental pollution
  प्रकाशित: (1974)
• Environmental problem areas in Peninsular Malaysia / [carta]
  प्रकाशित: (1979)