Kadokawa Nihon chimei jiten
角川日本地名辞典 47 v.
EA Ref: DS805 .K27 1978
Arranged by prefecture; gojuon order within prefecture.  Each volume is divided into four parts: general introduction, dictionary of place names, a geographical arrangement of cities, and other supplementary information.  No comphrensive index..

Kodai chimei daijiten 2 v.
古代地名大辞典, 本編,　索引・資料編
EA Ref: DS805 .K62 1999
Updates the Kadokawa Nihon chimei jiten with new research.  Covers the period to 1185.

Land Japonica
日本地名大百科：ランドジャポニカ
EA Ref: DS805 .N536 1996
An illustrated dictionary of Japanese place names. Each entry includes historical, geographical, industrial information as well as information on railroad stations, documents, famous temples and products. Includes some maps, photographs and illustrations. Index includes information on rail lines, ports, elevated highways, national parks and cultural treasures (by prefecture). There is also an index of hard-to-read names by number of strokes.