Frank R. Spellman

Identifiers

  • Open LibraryOL34859A

Top Subjects

  • Environmental engineering (18)
  • Sewage disposal (18)
  • Sewage, purification (17)
  • Water, purification (17)
  • Science/Mathematics (16)
  • Nature / Water Supply (15)
  • Technology & Industrial Arts (14)

Books by Frank R. Spellman

Total count: 272