Cita APA (7a ed.)

Geary, R. C., & Bénard, J. (1964). Europe's future in figures (2nd printing.). North-Holland.

Cita Chicago Style (17a ed.)

Geary, Robert Charles, y Jean Bénard. Europe's Future in Figures. 2nd printing. Amsterdam: North-Holland, 1964.

Cita MLA (9a ed.)

Geary, Robert Charles, y Jean Bénard. Europe's Future in Figures. 2nd printing. North-Holland, 1964.