APA Style

Johnstone, P, J, S, G. (1986). Operation world : a day-to-day guide to praying for the world / Patrick Johnstone. (4th ed.). Bromley, Kent, England: STL Books.

MLA Style

Johnstone, Patrick, J., St., G. "Operation world : a day-to-day guide to praying for the world / Patrick Johnstone.". 4th ed. Bromley, Kent, England: STL Books, 1986. Text.