APA (7th ed.) Citation

Castle, J., Clements, M., & Hendry, D. (2013). Forecasting by factors, by variables, by both or neither? Elsevier.

Chicago Style (17th ed.) Citation

Castle, J., M. Clements, and D. Hendry. Forecasting by Factors, by Variables, by Both or Neither? Elsevier, 2013.

MLA (9th ed.) Citation

Castle, J., et al. Forecasting by Factors, by Variables, by Both or Neither? Elsevier, 2013.