APA (7th ed.) Citation

Blet, P., Martini, A., & Schneider, B. (1968). Records and documents of the Holy See relating to the Second World War (English ed.). [Corpus Books].

Chicago Style (17th ed.) Citation

Blet, Pieree, Angelo Martini, and Burkhart Schneider. Records and Documents of the Holy See Relating to the Second World War. English ed. [Washington]: [Corpus Books], 1968.

MLA (9th ed.) Citation

Blet, Pieree, et al. Records and Documents of the Holy See Relating to the Second World War. English ed. [Corpus Books], 1968.