APA引文

Smart, J. D., & J.M. Swanson. A Promise to keep. Westminster Press.

Chicago Style (17th ed.) Citation

Smart, James D., and J.M. Swanson. A Promise to Keep. Philadelphia: Westminster Press.

MLA引文

Smart, James D., and J.M. Swanson. A Promise to Keep. Westminster Press.

警告：這些引文格式不一定是100％准確.