Cita APA (7th ed.)

Crouch, B. (2017). Dark matter. Pan Books.

Cita Chicago (17th ed.)

Crouch, Blake. Dark Matter. London: Pan Books, 2017.

Cita MLA (9th ed.)

Crouch, Blake. Dark Matter. Pan Books, 2017.

Atenció: Aquestes cites poden no estar 100% correctes.