APA (7th ed.) Citation

O'Nions, R. K. (1989). Seismic tomography and mantle circulation: Proceedings of a Royal Society Discussion Meeting held on 13 and 14 April 1988. Royal Society.

Chicago Style (17th ed.) Citation

O'Nions, R. K. Seismic Tomography and Mantle Circulation: Proceedings of a Royal Society Discussion Meeting Held on 13 and 14 April 1988. London: Royal Society, 1989.

MLA (9th ed.) Citation

O'Nions, R. K. Seismic Tomography and Mantle Circulation: Proceedings of a Royal Society Discussion Meeting Held on 13 and 14 April 1988. Royal Society, 1989.

Warning: These citations may not always be 100% accurate.