Cylinder head torque settings for a 1997 punto s 60?

Cylinder head torque settings for a 1997 punto s 60?
Head bolts for a Punto 60s need to be tightened in 3 stages:
stage 1 - tighten all bolts (in the correct order!) to 30Nm.
stage 2 - tighten again, in same order as before, by turning wrench a further 90 degrees
stage 3 - repeat stage 2