N. A. Petrova

Identifiers

  • Open LibraryOL922426A

Top Subjects

  • History and criticism (3)
  • Sources (2)
  • History (2)
  • Freshwater phytoplankton (1)
  • Lake ecology (1)
  • Phytoplankton populations (1)
  • Nature -- Effect of human beings on (1)

Books by N. A. Petrova

Total count: 8