The Brown Skua, Catharacta skua lonnbergi (Mathews) of South Georgia.
London: HMSO, 1956. Quarto, two plates, wrappers.
Falkland Islands Dependencies Survey. Scientific Reports, number 14.
London: HMSO, 1956. Quarto, two plates, wrappers.
Falkland Islands Dependencies Survey. Scientific Reports, number 14.