APA

(1976). For Whom the Bell Tolls. Hammersmith: Triad Grafton.

Chicago

1976. For Whom the Bell Tolls. Hammersmith: Triad Grafton.

Harvard

(1976). For Whom the Bell Tolls. Hammersmith: Triad Grafton.

MLA

For Whom the Bell Tolls. Hammersmith: Triad Grafton. 1976.