Regarding pressure unit in Lenard Jones unit

Dear Lammps experts,

I am going to calculate pressure in my 2 dimensional MD model with Lenard Jones unit. But I am not pretty sure that I should multiply the unitless pressure to epsilon/(sigma)^2 or epsilon/(sigma)^3 to find the pressure.

any comment is highly appreciated.

Best regards,

I suggest the book by Allen & Tildesley, Computer Simulation of Liquids, which

has an Appendix on LJ units.