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Carboneras, C. & Kirwan, G.M. (2016). Bar-headed Goose (Anser indicus). I: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from http://www.hbw.com/node/52816 on 18 May 2016).
Carboneras, C., Kirwan, G.M. & Garcia, E.F.J. (2016). Greylag Goose (Anser anser). I: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from http://www.hbw.com/node/52815 on 18 May 2016).
Carboneras, C. & Kirwan, G.M. (2016). Swan Goose (Anser cygnoid). I: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from http://www.hbw.com/node/52810 on 18 May 2016).
Carboneras, C., Kirwan, G.M. & Garcia, E.F.J. (2016). Greater White-fronted Goose (Anser albifrons). I: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from http://www.hbw.com/node/52813 on 18 May 2016).
Carboneras, C. & Kirwan, G.M. (2016). Lesser White-fronted Goose (Anser erythropus). I: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from http://www.hbw.com/node/52814 on 18 May 2016).
Carboneras, C. & Kirwan, G.M. (2016). Bean Goose (Anser fabalis). I: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from http://www.hbw.com/node/52811 on 18 May 2016).
Carboneras, C. & Kirwan, G.M. (2016). Pink-footed Goose (Anser brachyrhynchus). I: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from http://www.hbw.com/node/52812 on 18 May 2016).
