A calender of the correspondence of Charles Darwin, 1821-1882, with supplement - Burkhardt, Frederick, 1912-; Smith, Sydney, 1911- (Cambridge : Cambridge University Press, 1994)
'The Darwin correspondence project is sponsored by the American Council of Learned Societies'--T.p. verso
Keywords: Darwin, Charles -- 1809-8182 -- Correspondence -- Catalogs; Naturalists -- England -- Correspondence