"VIAF" . . . . "Len" . . . . "16531453"^^ . . . . . . . . . . "Doyal" . "Empiricism, explanation, and rationality / Len Doyal and Roger Harris, 2009. - . - LC Authorities. - http://authorities.loc.gov/. - 2011-08-17"@fr . "0000000084612856" . "male" . . . "2013-08-08"^^ . "Len Doyal"@fr . "2013-08-09" . "Len Doyal" . . "2011-08-17" . . .