The scientific principles of plant protection.

समान संसाधन

• The scientific principles of plant protection
  द्वारा: Martin , Hubert
  प्रकाशित: (1928)
• Scientific principles of plant protection: with special reference to chemical control
  द्वारा: Martin, Hubert
  प्रकाशित: (1940)
• The scientific principles of plant protection with special reference to chemical control.
  द्वारा: Martin, Hubert
  प्रकाशित: (2023)
• Principles and procedures of plant protection
  द्वारा: Chattopadhyay, S.B
  प्रकाशित: (1980)
• The principles of scientific management
  द्वारा: Taylor, Frederick Winslow
  प्रकाशित: (1915)