APA-Zitierstil (7. Ausg.)

Beltrán, A. (1988). Tunneling '88: 5th international symposium, England, from 18 to 21 April, 1988 ([1st ed.].). Institute of Mining and Metallurgy.

Chicago-Zitierstil (17. Ausg.)

Beltrán, A. Tunneling '88: 5th International Symposium, England, from 18 to 21 April, 1988. [1st ed.]. London: Institute of Mining and Metallurgy, 1988.

MLA-Zitierstil (9. Ausg.)

Beltrán, A. Tunneling '88: 5th International Symposium, England, from 18 to 21 April, 1988. [1st ed.]. Institute of Mining and Metallurgy, 1988.