Oman
ISSN National Centre for the Sultanate of Oman
国家号：OMN
中心号：83
Ministry of Information
P.O.Box 66
100 Muscat Al Khuwair
Sultanate of Oman
Muscat
电话00 96 82 494 3122
网站available soon.
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联系
M.
AL HASSANI Ali Khalfan
Head of the Numbering Section