Fonte positiva dos dados

Autor de: Maquiavel...1988

LC name auth. 77/83: (AACR2)

LC register 83

CA/FGV

LC on line

http://www.hist.cam.ac.uk/academic-staff/further-details/skinner.html

http://lcweb.loc.gov

http://blpc.bl.uk

LC name auth. 77/86

Fonte negativa dos dados

LC name auth. 87/97; 98/2000