Quantum redactiones paginae "Georgius Robertus Gray" differant

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== Lege etiam ==
* ''Entomology of Australia'' (1833)
* Genera avium (''Genera of Birds'' 1844-49), cum imaginibus David William Mitchell ac Iosephi Wolf,
* Libellus de avibus Sinae ( ''A fasciculus of the Birds of China''), anno 1871, [[Londinium|Londinii]], Taylor and Francis.