APA

O'Brien J. J., Catholic University of America (Washington), . (1959). The remission of venial sin. Washington (D.C.): Catholic University of America.

Chicago

O'Brien John Joseph, Catholic University of America (Washington), . 1959. The remission of venial sin. Washington (D.C.): Catholic University of America.

Harvard

O'Brien J. J., Catholic University of America (Washington), . (1959). The remission of venial sin. Washington (D.C.): Catholic University of America.

MLA

O'Brien John Joseph, Catholic University of America (Washington), . The remission of venial sin. Washington (D.C.): Catholic University of America. 1959.