J. H. de Haas

Identifiers

  • Open LibraryOL150216A

Top Subjects

  • Netherlands (2)
  • Karo-Batak (Indonesian people) (1)
  • Infants (1)
  • Diseases (1)
  • Infant Mortality (1)
  • Mortality (1)
  • Child (1)

Books by J. H. de Haas

Total count: 6