Παραπομπή APA

Jones, W. (1963). Minerals in industry (4th ed.). Penguin books.

Παραπομπή Chicago Style

Jones, W.R. Minerals in Industry. 4th ed. Battimore: Penguin books, 1963.

Παραπομπή MLA

Jones, W.R. Minerals in Industry. 4th ed. Penguin books, 1963.