How to use quadl for one function with eight variables?

I have a function that contains eight variables that I need to integrate. I have to use eight nested integrals to solve for each dependant. I was w ondering how I can use the "quadl" function to do so. It is a highly accurate function and I am integrating along a sphere and that is why I am trying to avoid using the "quad" function. Please let me know waht is the command line, using the "quadl" function, that I should use to solve my eight integral problem using a function with eight variables.

Thank you