Bone, Emily
London
Usborne Publishing
2012
9781409530688
Koenig, Martin A.
Bucureşti
Saeculum I.O.
1998
9739200680
Debroise, Anne
Enciclopedia RAO
2003
9737932110
Manole, Ilie
Ceres
1984
Mureşanu, Cristian
Cluj-Napoca
AcademicPres
2007
9789737440815
Spignesi, Stephen J.
Lider
2005
9736290603