Window command creating a dynamic batch script

Question

I have 3 dlls in a folder "release"

abc.dll
def.dll
ghi.dll

I want the output in a variable to be like

/reference:abc.dll /reference:def.dll /reference:ghi.dll

 

I am able to get file names but not able to append "/reference:" with the dll names To get the file names i am using "dir /b" command