Helios (encyclopedia)
Helios, more fully the Helios New Encyclopedic Dictionary, is a general knowledge Greek encyclopaedia. Its publication commenced in 1945 while its second edition was completed in 1960, comprising a total of 18 volumes.
Helios, more fully the Helios New Encyclopedic Dictionary, is a general knowledge Greek encyclopaedia. Its publication commenced in 1945 while its second edition was completed in 1960, comprising a total of 18 volumes.