Cita APA

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

Citación estilo Chicago

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

Cita MLA

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

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