Gaya APA
Truhlar, C, S. (1961).
Labor christianus, initiatio in theologiam spiritualem systematicam de labore. .
Romae etc:
Herder.
Gaya MLA
Truhlar, C.V,, S.J..
"Labor christianus, initiatio in theologiam spiritualem systematicam de labore. ".
Romae etc:
Herder,
1961.
Buku.