APA

Regan G. M., . (1971). New trends in moral theology: a survey of fundamental moral themes. New York: Newman Press.

Chicago

Regan George M, . 1971. New trends in moral theology: a survey of fundamental moral themes. New York: Newman Press.

Harvard

Regan G. M., . (1971). New trends in moral theology: a survey of fundamental moral themes. New York: Newman Press.

MLA

Regan George M, . New trends in moral theology: a survey of fundamental moral themes. New York: Newman Press. 1971.