APA-referens (7:e uppl.)

Heikkilä, P. (2014). Estonians for Europe: National activism for European unification since the 1920s until the end of the Cold War. P.I.E. Peter Lang S.A.

Chicago-referens (17:e uppl.)

Heikkilä, Pauli. Estonians for Europe: National Activism for European Unification Since the 1920s Until the End of the Cold War. Brussels, Belgium: P.I.E. Peter Lang S.A, 2014.

MLA-referens (9:e uppl.)

Heikkilä, Pauli. Estonians for Europe: National Activism for European Unification Since the 1920s Until the End of the Cold War. P.I.E. Peter Lang S.A, 2014.