APA

Walters. Martin, Trotman F., . (1991). The illustrated dicitionart of earth sciences. Wiltshire: Merlion Publishing ltd.

Chicago

Walters. Martin, Trotman Felicity, . 1991. The illustrated dicitionart of earth sciences. Wiltshire: Merlion Publishing ltd.

Harvard

Walters. Martin, Trotman F., . (1991). The illustrated dicitionart of earth sciences. Wiltshire: Merlion Publishing ltd.

MLA

Walters. Martin, Trotman Felicity, . The illustrated dicitionart of earth sciences. Wiltshire: Merlion Publishing ltd. 1991.