has source material

URI: https://gptkb.org/prop/has_source_material
5 triples
GPTKB property
Random triples
Subject Object
gptkb:Call_of_Cthulhu_role-playing_game gptkb:August_Derleth
gptkb:Call_of_Cthulhu_role-playing_game gptkb:Cthulhu_Mythos
gptkb:Call_of_Cthulhu_role-playing_game gptkb:H._P._Lovecraft
gptkb:Rune_Quest:_Roleplaying_in_Glorantha supplements
gptkb:Call_of_Cthulhu_role-playing_game gptkb:Robert_E._Howard