Cita APA (7a ed.)
James Mullaney. Double & Multiple Stars, and How to Observe Them. Springer.
Cita estilo Chicago (17a ed.)
James Mullaney. Double & Multiple Stars, and How to Observe Them. Londres, Inglaterra: Springer.
Cita MLA (9a ed.)
James Mullaney. Double & Multiple Stars, and How to Observe Them. Springer.
Precaución: Estas citas no son 100% exactas.