Arseven's encyclopedia was the first comprehensive attempt in the Republic of Turkey to define and standardize art and architectural terms.
As for the PDF version, I couldn't find a direct link to download the specific file you mentioned, "celal esad arseven sanat ansiklopedisi pdf 14 work." However, I can suggest some possible sources where you might find the content: celal esad arseven sanat ansiklopedisi pdf 14 work