APA (7th ed.) Citation

Orgill, D., & Gribbin, J. R. (1980). The sixth winter. Futura.

Chicago Style (17th ed.) Citation

Orgill, Douglas, and John R. Gribbin. The Sixth Winter. London: Futura, 1980.

MLA (8th ed.) Citation

Orgill, Douglas, and John R. Gribbin. The Sixth Winter. Futura, 1980.

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