International Astronomical Union. (1968). Non Stablehenomena in Galaxies. Publishing House of the Academy of Sciences of Armenia.
Cita Chicago Style (17a ed.)International Astronomical Union. Non Stablehenomena in Galaxies. Yerevan: Publishing House of the Academy of Sciences of Armenia, 1968.
Cita MLA (9a ed.)International Astronomical Union. Non Stablehenomena in Galaxies. Publishing House of the Academy of Sciences of Armenia, 1968.
Precaución: Estas citas no son 100% exactas.