APA-čujuhus (7. p.)
Ritsema, A. R. (1954). Organization for scientific research in Indonesia: A statistical Study of the seismicity of the earth. Meteor. and Geophys. Serv.
Chicago-čujuhus (17. p.)
Ritsema, Anne Reinier. Organization for Scientific Research in Indonesia: A Statistical Study of the Seismicity of the Earth. Djakarta: Meteor. and Geophys. Serv, 1954.
MLA-čujuhus (9. p.)
Ritsema, Anne Reinier. Organization for Scientific Research in Indonesia: A Statistical Study of the Seismicity of the Earth. Meteor. and Geophys. Serv, 1954.
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