APA-viite

George, D. (2007). Ecological spirituality: Cross cultural perspective. Serials pub.

Chicago-tyylinen lähdeviittaus

George, Davis. Ecological Spirituality: Cross Cultural Perspective. New Delhi: Serials pub, 2007.

MLA-viite

George, Davis. Ecological Spirituality: Cross Cultural Perspective. Serials pub, 2007.