Daniels, L. T. (1987). Frontier challenge: There was a man sent from God whose name was John; being the story of the Revd. W. J. Ringer and the Afghan Border Crusade, 1904 to 1985 (1. publ.). Bridge Publications.
Chicago Style (17th ed.) CitationDaniels, L. T. Frontier Challenge: There Was a Man Sent from God Whose Name Was John; Being the Story of the Revd. W. J. Ringer and the Afghan Border Crusade, 1904 to 1985. 1. publ. Sheffield: Bridge Publications, 1987.
MLA (9th ed.) CitationDaniels, L. T. Frontier Challenge: There Was a Man Sent from God Whose Name Was John; Being the Story of the Revd. W. J. Ringer and the Afghan Border Crusade, 1904 to 1985. 1. publ. Bridge Publications, 1987.
Warning: These citations may not always be 100% accurate.