1
Published: 1975
Superior document: Iwanuma chiiki no chishitsu [Textbd.]
2
Published: 1975
Publisher: 地質調査所 / Chishitsu Chōsa sho
Superior document: Chiiki chishitsu kenkyū hōkōku : Akita (6) 108
3
Published: 1975
Superior document: Iwanuma chiiki no chishitsu [Karte]
4
Published: 1988
Superior document: Kakuda chiiki no chishitsu [Textbd.]
5
Published: 1988
Publisher: 地質調査所 / Chishitsu Chōsa sho
Superior document: Chiiki chishitsu kenkyū hōkōku : Niigata (7) 16
6
Published: 1988
Superior document: Kakuda chiiki no chishitsu [Karte]