APA

KEATING T., . (1997). The contemplative journey. Nueva York: s.n.

Chicago

KEATING Thomas, . 1997. The contemplative journey. Nueva York: s.n.

Harvard

KEATING T., . (1997). The contemplative journey. Nueva York: s.n.

MLA

KEATING Thomas, . The contemplative journey. Nueva York: s.n. 1997.