Gaya APA

Lederach, J, P. (1999). Building peace: Sustainable reconciliation in divided societies. Foreword by Richard H. Solomon. . Washington: Washington United States Institute of peace.

Gaya MLA

Lederach, John, Paul. "Building peace: Sustainable reconciliation in divided societies. Foreword by Richard H. Solomon. ". Washington: Washington United States Institute of peace, 1999. Buku.