APA (7th ed.) Citation

Pio, o. P. (1954). The voice of Padre Pio. A. Federico.

Chicago Style (17th ed.) Citation

Pio, of Pietrelcina. The Voice of Padre Pio. Foggia: A. Federico, 1954.

MLA (8th ed.) Citation

Pio, of Pietrelcina. The Voice of Padre Pio. A. Federico, 1954.

Warning: These citations may not always be 100% accurate.