Gaya APA
Seismological Bulletin Ser. 2 Vol. 9 No.1,2 January - June 1981
.
().
Japan:
The Seismological Obsevatory.
Gaya MLA
Seismological Bulletin Ser. 2 Vol. 9 No.1,2 January - June 1981
.
.
Japan:
The Seismological Obsevatory,
.
.