F. Penningsfeld

Identifiers

  • Open LibraryOL2114530A

Top Subjects

  • Plants -- Nutrition (2)
  • Horticulture -- Research (2)
  • Soils (1)
  • Albania (1)
  • Hydroponics (1)
  • Peat (1)

Books by F. Penningsfeld

Total count: 5