APA

Keenan M., . (2000). Care for creation. Cdd. del Vaticano: Vatican Press.

Chicago

Keenan Marjorie, . 2000. Care for creation. Cdd. del Vaticano: Vatican Press.

Harvard

Keenan M., . (2000). Care for creation. Cdd. del Vaticano: Vatican Press.

MLA

Keenan Marjorie, . Care for creation. Cdd. del Vaticano: Vatican Press. 2000.