Gray, J. E. (1870). Catalogue of Sea-Pens or Pennatulariidae in the Collection of the British Museum. Printed by Order of the Trustees.
Chicago-Zitierstil (17. Ausg.)Gray, J. E. Catalogue of Sea-Pens or Pennatulariidae in the Collection of the British Museum. London: Printed by Order of the Trustees, 1870.
MLA-Zitierstil (9. Ausg.)Gray, J. E. Catalogue of Sea-Pens or Pennatulariidae in the Collection of the British Museum. Printed by Order of the Trustees, 1870.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.