Fonte positiva dos dados

Sec. de: Grotowski, Jerzy. O teatro laboratório de Jerzy Grotowski... 2007

LC authorities 08/09/08

http://catalogue.bl.uk/ 08/09/08

http://catalogue.bnf.fr/ 08/09/08: (d.n. 1930)

http://karoumk.pl/karo/excel/z2w-f.pl 08/09/08: (d.n. 1930)