Cita APA (7th ed.)

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.