Marini-Bettolo, G. B. (1987). The activity of the Pontifical Academy of Sciences 1936-1986. Pontificia Academia Scientiarum.
Cita Chicago (17th ed.)Marini-Bettolo, Giovanni B. The Activity of the Pontifical Academy of Sciences 1936-1986. Ciudad del Vaticano: Pontificia Academia Scientiarum, 1987.
Cita MLA (9th ed.)Marini-Bettolo, Giovanni B. The Activity of the Pontifical Academy of Sciences 1936-1986. Pontificia Academia Scientiarum, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.