Παραπομπή APA

Alec Watt. (1982). Longman illustrated dictionary of Geology. Longman.

Παραπομπή Chicago Style

Alec Watt. Longman Illustrated Dictionary of Geology. Essex: Longman, 1982.

Παραπομπή MLA

Alec Watt. Longman Illustrated Dictionary of Geology. Longman, 1982.