Proleksis Encyclopedia was created in 2009.
Encyclopedia of China was created in 1978.
Encyclopedia of Conifers was created in 2012.
Mining Encyclopedia was created in 1998.
The Otaku Encyclopedia was created in 2009.
The Dante Encyclopedia was created in 2000.
Croatian Encyclopedia was created in 1999.
Klein's encyclopedia was created in 1898.
Encyclopedia of Sound was created in 2001.
Encyclopedia Brunoniana was created in 1993.
Hutchinson Encyclopedia was created in 1948.
Catholic Encyclopedia was created in 1907.
Encyclopedia Rizaliana was created in 2008.