Gaya APA
Petri, H. (2011).
A state of peace in Europe:West Germany and the CSCE, 1966-1975 .
New York and Oxford:
Berghahn Books.
Gaya MLA
Hakkarainen, Petri.
"A state of peace in Europe:West Germany and the CSCE, 1966-1975".
New York and Oxford:
Berghahn Books,
2011.
Electronic Resource.