Παραπομπή σε μορφή APA (7η εκδ.)

Frost, L. (2006). The elements of His dark materials: A guide to Philip Pullman's trilogy. Fell Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Frost, Laurie. The Elements of His Dark Materials: A Guide to Philip Pullman's Trilogy. [Buffalo Grove, IL]: Fell Press, 2006.

Παραπομπή σε μορφή MLA (9th εκδ.)

Frost, Laurie. The Elements of His Dark Materials: A Guide to Philip Pullman's Trilogy. Fell Press, 2006.