Beck, L. J..
The method of Descartes: a study of the "Regulae" /
L.J. Beck 
. - Oxford : Clarendon Press,  1964 
. - x, 316 p.  22 cm. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Descartes, Ren ̌ 1596-1650  Regul ̆ad directionem ingenii <br/>Descartes, Ren ̌ 1596-1650  Discours de la mťhode