APA (7th ed.) Citation

Pickering, A., Magill, P., & Hagreen, J. (1984). Guide to Lourdes. Catholic Truth Society.

Chicago Style (17th ed.) Citation

Pickering, Aidan, Paul Magill, and John Hagreen. Guide to Lourdes. London: Catholic Truth Society, 1984.

MLA (8th ed.) Citation

Pickering, Aidan, et al. Guide to Lourdes. Catholic Truth Society, 1984.