Παραπομπή σε μορφή APA (7η εκδ.)

English Heritage & Hughes, H. (2002). Layers of understanding: Setting standards for architectural paint research, proceedings of a seminar held on 28 April 2000. Donhead.

Παραπομπή σε μορφή Chicago (17η εκδ.)

English Heritage και Helen Hughes. Layers of Understanding: Setting Standards for Architectural Paint Research, Proceedings of a Seminar Held on 28 April 2000. Shaftesbury ; Massachusetts: Donhead, 2002.

Παραπομπή σε μορφή MLA (8th εκδ.)

English Heritage και Helen Hughes. Layers of Understanding: Setting Standards for Architectural Paint Research, Proceedings of a Seminar Held on 28 April 2000. Donhead, 2002.