APA (7th ed.) Citation

Hadfield, C., & Hadfield, J. (1988). A winter in Tibet: Letters from Tibet. Impact Books.

Chicago Style (17th ed.) Citation

Hadfield, Charles, and Jill Hadfield. A Winter in Tibet: Letters from Tibet. London: Impact Books, 1988.

MLA (9th ed.) Citation

Hadfield, Charles, and Jill Hadfield. A Winter in Tibet: Letters from Tibet. Impact Books, 1988.