The birds of Singapore Island..
Singapore :Printed at the Govt. Print. Office by W. T. Cherry, Govt. Printer,1927..
biodiversitylibrary.org/page/47191443
Histoire naturelle et générale des colibris, oiseaux-mouches, jacamars et promerops /.
A Paris,chez Desray,an XI=1802..
biodiversitylibrary.org/page/33768923