APA (7th ed.) Citation

Maclaren, R. A. (1889). The true source of missionary zeal. publisher not identified.

Chicago Style (17th ed.) Citation

Maclaren, Rev. Alex. The True Source of Missionary Zeal. [Place of publication not identified: publisher not identified, 1889.

MLA (9th ed.) Citation

Maclaren, Rev. Alex. The True Source of Missionary Zeal. publisher not identified, 1889.