APA (7th ed.) Citation

Barna, G., & Mackay, W. P. (1984). Vital signs: Emerging social trends and the future of American Christianity. Crossway Books.

Chicago Style (17th ed.) Citation

Barna, George, and William Paton Mackay. Vital Signs: Emerging Social Trends and the Future of American Christianity. Westchester, Ill: Crossway Books, 1984.

MLA (8th ed.) Citation

Barna, George, and William Paton Mackay. Vital Signs: Emerging Social Trends and the Future of American Christianity. Crossway Books, 1984.