Medestäjät

The birds of Australia, supplement /. London :Printed by Taylor and Francis ... published by the author ...,[1851]-1869.. biodiversitylibrary.org/page/48517480

The birds of Singapore Island.. Singapore :Printed at the Govt. Print. Office by W. T. Cherry, Govt. Printer,1927.. biodiversitylibrary.org/page/47191473

Katalog der Eiersammlung Braunschweig :H. Bruhn,1899. biodiversitylibrary.org/page/13646360

The Avicultural magazine Ascot, Berkshire, etc. :Avicultural Society, etc. biodiversitylibrary.org/page/32655206

Beiträge zur Kenntniss der Vogelfauna von Celebes Budapest :Franklin-Verein,1885-1886. biodiversitylibrary.org/page/14303717

The birds of Africa,. London,Published for the author by R.H. Porter (18 Princes Street, Cavendish Square, W.),1896-1912.. biodiversitylibrary.org/page/14023254

The Avicultural magazine Ascot, Berkshire, etc. :Avicultural Society, etc. biodiversitylibrary.org/page/56200743

A century of birds from the Himalaya Mountains.. London,1831.. biodiversitylibrary.org/page/42203678

The birds of Africa,. London,Published for the author by R.H. Porter (18 Princes Street, Cavendish Square, W.),1896-1912.. biodiversitylibrary.org/page/14023260

The Avicultural magazine Ascot, Berkshire, etc. :Avicultural Society, etc. biodiversitylibrary.org/page/32669506