TY  - JOUR
TI  - White-winged Tern. Viralva leucoptera. Leach. L'Hirondelle-de-mer leucoptère. [Pl. 423]
T2  - The Birds of Europe
VL  - 5
UR  - https://www.biodiversitylibrary.org/part/317607
PB  - Printed by R. and J.E. Taylor, pub. by the author
CY  - London
PY  - 1837
DO  - 10.5962/p.317607
AU  - Gould, John
ER  -