APA (7th ed.) Citation

Ward, F. K. (1985). Plant hunting on the edge of the world. Cadogan.

Chicago Style (17th ed.) Citation

Ward, Francis Kingdon. Plant Hunting on the Edge of the World. London: Cadogan, 1985.

MLA (9th ed.) Citation

Ward, Francis Kingdon. Plant Hunting on the Edge of the World. Cadogan, 1985.