Gaya APA

Vatikan, . et al (2007). a. Surat kepada para artis (seniman-seniwati) b. Etika dalam komunikasi (Letter of his holiness pope John Paul II to artists. Ethics in communications) . : .

Gaya MLA

Vatikan, . et al. "a. Surat kepada para artis (seniman-seniwati) b. Etika dalam komunikasi (Letter of his holiness pope John Paul II to artists. Ethics in communications)". : , 2007. Text.