APA (7th ed.) Citation

Tricker, G., Ticker, G., & Steuk, J. (2005). Francis of Assisi: Paintings for our time. Green Books.

Chicago Style (17th ed.) Citation

Tricker, Greg, Greg Ticker, and Johannes Steuk. Francis of Assisi: Paintings for Our Time. Totnes [England]: Green Books, 2005.

MLA (9th ed.) Citation

Tricker, Greg, et al. Francis of Assisi: Paintings for Our Time. Green Books, 2005.