However, there is no year. I know versions are updated, but what year should I use for this version? What is the correct citation? I cited as above in my paper but only in the Reference section. The Editor asked me to include it in text, as well. Sorry if this is basic question, but I'm unsure how to cite it in text.
Some of the grad students in my lab used the citation below, but it is not the manual I want to cite, rather the software.
Muthén, L. K.., & Muthén, B. O. (2007). Mplus User's Guide (Sixth Edition). Los Angeles, CA: Muthén & Muthén.