Jeffrey, G. R. (1997). The handwriting of God: Sacred mysteries of the Bible. Frontier Research Publications.
Citazione stile Chigago Style (17a edizione)Jeffrey, Grant R. The Handwriting of God: Sacred Mysteries of the Bible. Toronto, Ont.: Frontier Research Publications, 1997.
Citatione MLA (9a ed.)Jeffrey, Grant R. The Handwriting of God: Sacred Mysteries of the Bible. Frontier Research Publications, 1997.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.