Russian Academy of Sciences. (1993). Astronomy Letters. American Institute of Physics.
Citação do estilo Chicago (17ª ed.)Russian Academy of Sciences. Astronomy Letters. Woodbury, NY: American Institute of Physics, 1993.
Citação MLA (8ª ed.)Russian Academy of Sciences. Astronomy Letters. American Institute of Physics, 1993.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.