APA (7th ed.) Citation

Krickeberg, W. (1968). Pre-Columbian American religions. History of religion.

Chicago Style (17th ed.) Citation

Krickeberg, Walter. "Pre-Columbian American Religions." History of Religion 1968.

MLA (8th ed.) Citation

Krickeberg, Walter. "Pre-Columbian American Religions." History of Religion, 1968.

Warning: These citations may not always be 100% accurate.