Joy of Knowledge - The Comprehensive Home Reference Library : Fact index A-Z ; History : Ancient world to 18th century 1153-1536 ; Technology and resources 385-76...
Koko nimi: Joy of Knowledge - The Comprehensive Home Reference Library : Fact index A-Z ; History : Ancient world to 18th century 1153-1536 ; Technology and resources 385-768 ; Physical sciences, Space sciences, Medicine & technology 769-1152 ; History : Modern Age - Man & Society 1537-1920 ; Living world : Natural earth 1-384 ; Complete atlas : Survey of nations 1921-2304