Hand-list of genera and species of birds, distinguishing those contained in the British museum. P.III / G. R. Gray. - London : [б. и.], 1871. - 350 p.. - Б. ц. ------------
List of the specimens of birds in the collection of the British Museum. Pt.III. Sect.III, IV. Capitonidae and Picidae / G. R. Gray. - London : [б. и.], 1868. - 137 p.. - Б. ц. ------------