Blamey, M., Fitter, R. S. R., & Fitter, A. (1977). Wild flowers: The wild flowers of Britain and northern Europe ([New ed.].). Collins.

Blamey, Marjorie, Richard Sidney Richmond Fitter, and Alastair Fitter. Wild Flowers: The Wild Flowers of Britain and Northern Europe. [New ed.]. London: Collins, 1977.

Blamey, Marjorie, et al. Wild Flowers: The Wild Flowers of Britain and Northern Europe. [New ed.]. Collins, 1977.