Catelan, M., & Smith, H. A. (2015). Pulsating stars. Wiley.
Cita Chicago (17th ed.)Catelan, Márcio, i Horace A. Smith. Pulsating Stars. Weinheim, Germany: Wiley, 2015.
Cita MLA (9th ed.)Catelan, Márcio, i Horace A. Smith. Pulsating Stars. Wiley, 2015.
Atenció: Aquestes cites poden no estar 100% correctes.