The herrins gull's world /

Antzeko izenburuak

• Shadow of gulls /
  nork: Finney, Patricia
  Argitaratua: (1977)
• Shorebirds of Kerala: including gulls & terns
  nork: C Sashikumar
  Argitaratua: (2004)
• The animal in its world /
  nork: Tinbergen
  Argitaratua: (1972)
• World crisis How to serve the interests of the South? /
  nork: Tinbergen, Jan
  Argitaratua: (1984)
• Essays in regional and world planning
  nork: Tinbergen, J
  Argitaratua: (1966)