Zettl, G. (1729). Confessarius tam saecularis: Quam regularis juxta triplex officium judicis, doctoris, et medici practicè instructus. Sumptibus Joan. Andreae de la Haye.
Lua i Stíl Chicago (17ú heag.)Zettl, Gerhard. Confessarius Tam Saecularis: Quam Regularis Juxta Triplex Officium Judicis, Doctoris, Et Medici Practicè Instructus. Ingolstadii: Sumptibus Joan. Andreae de la Haye, 1729.
Lua MLA (8ú heag.)Zettl, Gerhard. Confessarius Tam Saecularis: Quam Regularis Juxta Triplex Officium Judicis, Doctoris, Et Medici Practicè Instructus. Sumptibus Joan. Andreae de la Haye, 1729.
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