We appreciate that you can cite WebSEM in your publication if you use WebSEM for your data analysis. We recommend using the following in the text:

Our analysis was conducted using WebSEM. WebSEM is free online software for structural equation modeling and is developed and maintained by Zhang and Yuan (2012). WebSEM provides a graphical user interface for drawing path diagram and utilizes R packages lavaan (Rosseel, 2012), rsem (Yuan & Zhang, 2012), and bmem (Wang & Zhang, 2013) for a variety of SEM analysis.

In the references part, please cite the following.

• Yuan, K.-H., & Zhang, Z. (2012). Robust Structural Equation Modeling with Missing Data and Auxiliary Variables. Psychometrika, 77(4), 803-826.
• Yves Rosseel (2012). lavaan: An R Package for Structural Equation Modeling. Journal of Statistical Software, 48(2), 1-36. URL http://www.jstatsoft.org/v48/i02/.
• Zhang, Z., & Wang, L. (2013). Methods for mediation analysis with missing data. Psychometrika, 78(1), 154-184.
• Zhang, Z. and Yuan, K.-H. (2012) WebSEM manual. [Software]. Available from https://websem.psychstat.org.