Perring, F. H. (1970). The Flora of a changing britain. Hampton, Middlesex. Botanical Society of the British Isles.
Cita Chicago Style (17a ed.)Perring, Franklin Hugh. The Flora of a Changing Britain. Hampton, Middlesex. Hampton, Middlesex: Botanical Society of the British Isles, 1970.
Cita MLA (9a ed.)Perring, Franklin Hugh. The Flora of a Changing Britain. Hampton, Middlesex. Botanical Society of the British Isles, 1970.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.