Citazione Stile APA (7a Edizione)

Ferrars, E. X. (1975). Unreasonable doubt. Severn House : [Distributed by Hutchinson].

Citazione stile Chigago Style (17a edizione)

Ferrars, E. X. Unreasonable Doubt. London: Severn House : [Distributed by Hutchinson], 1975.

Citatione MLA (8a ed.)

Ferrars, E. X. Unreasonable Doubt. Severn House : [Distributed by Hutchinson], 1975.