APA

Lewis C. S., Walsh C., . (1976). A |grief observed. New York (etc.): Bantam Books.

Chicago

Lewis C S, Walsh Chad, . 1976. A |grief observed. New York (etc.): Bantam Books.

Harvard

Lewis C. S., Walsh C., . (1976). A |grief observed. New York (etc.): Bantam Books.

MLA

Lewis C S, Walsh Chad, . A |grief observed. New York (etc.): Bantam Books. 1976.