The WHO recommended classification of pesticides by hazard and guidelines to classification 1988-1989 /

समान संसाधन

• Road classification /
  द्वारा: Vincent, E. N.
  प्रकाशित: (1984)
• Plant classification /
  द्वारा: Benson, Lyman David, 1909-
  प्रकाशित: (1979)
• Evolution and classification /
  द्वारा: Mallard, Ann
  प्रकाशित: (1985)
• The Australian soil classification /
  द्वारा: Isbell, R. F.
  प्रकाशित: (1994)
• Microbiological classification and identification
  प्रकाशित: (1980)