H. Norris, Tudor Costume and Fashion, reprinted edition (Mineola, NY: Dover Publications, 1997), с. 611.
60
W. C. Oosthuizen and P. J. N. de Bruyn,‘Isabelline King Penguin Aptenodytes Patagonicus at Marion Island’, in Marine Ornithology, Vol. 37, Issue 3 (2010), с. 275–276.