Gia Carangi
LANCETTI
This series of photos was taken in Milan during
"Alta Moda" in late July and early August of 1978. 
The other model in several of the photos with Gia is
Julie Foster.
  I think the model with Gia in the last
photo is Nancy Donahue or Kim Alexis.  The photos were taken by photographer Jacques Malignon for Lancetti.