Παραπομπή σε μορφή APA (7η εκδ.)

Watkins, T. (2004). Dark matter: Shedding light on Philip Pullman's trilogy His dark materials. IVP Books.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Watkins, Tony. Dark Matter: Shedding Light on Philip Pullman's Trilogy His Dark Materials. [Downers Grove, IL]: IVP Books, 2004.

Παραπομπή σε μορφή MLA (9th εκδ.)

Watkins, Tony. Dark Matter: Shedding Light on Philip Pullman's Trilogy His Dark Materials. IVP Books, 2004.