Regesta pontificvm romanorvm,
ivbente Regia societate gottingensi congessit Pavlvs Fridolinvs Kehr. Germania pontificia ... avctore Alberto Brackmann.
APA Citation
Catholic Church. Pope. (1911). Regesta pontificvm romanorvm. Berolini.
MLA Citation
Catholic Church. Pope. Regesta Pontificvm Romanorvm. Berolini, 1911.
Warning: These citations may not always be complete (especially for serials).