89 Cutlass Ciera - PCV valve, where is it???

Ok, he said rather sheepishly, where in heck on an 89 Cutlass Ciera 3.3L V6

is the PCV valve located????

I bought stuff to tune up my son's car (air filter, PCV valve, oil filter,

oil, plugs, fuel filter) and I must have spent at least 30 minutes looking

for the PCV valve in the engine compartment.  I'm stumped so can someone 
tell me where I should be looking for it?

Also, as the new valve box was open when I bought it from the auto parts 
store, and although the enclosed pcv valve looks new I am not sure it is
the 
correct one for my car.  Where might I find a picture of the correct one
for 
my 89 Ciera?  Do I even need one of these valves?

Thanks,
Walter