THE PAPAL SECRETARY OF STATE, Rescript from an Audience, the Instruction Secreta continere, Concerning Pontifical Secrecy, February 4, 1974, in AAS 66 (1974) 89-92: Secretaria Status seu Papalis, Rescriptum ex Audientia, Huấn thị Secreta continere, Về bí mật tông tòa, 4/2/1974, trong AAS 66 (1974) 89-92:
The Secretariat of State or Papal Secretariat, Rescript from an Audience, the Instruction Secreta continere, Concerning the Pontifical Secret, February 4, 1974, in AAS 66 (1974) 89-92: Secretaria Status seu Papalis, Rescriptum ex Audientia, Huấn thị Secreta continere, Về bí mật tông tòa, 4/2/1974, trong AAS 66 (1974) 89-92: