Παραπομπή σε μορφή APA (7η εκδ.)

De Castle, L., & Gilmore, H. (1993). SOS: A step by step approach to composition writing for the Cambridge First Cetrificate (2nd ed.). Hillside Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

De Castle, Linetta, και H. Gilmore. SOS: A Step by Step Approach to Composition Writing for the Cambridge First Cetrificate. 2nd ed. Athens: Hillside Press, 1993.

Παραπομπή σε μορφή MLA (9th εκδ.)

De Castle, Linetta, και H. Gilmore. SOS: A Step by Step Approach to Composition Writing for the Cambridge First Cetrificate. 2nd ed. Hillside Press, 1993.