APA (7th ed.) Citation

Donaldson, J. G., & Donaldson, F. L. (1972). Farming in Britain today (rev.ed.). Penguin Books.

Chicago Style (17th ed.) Citation

Donaldson, John G., and Frances Lonsdale Donaldson. Farming in Britain Today. rev.ed. Harmondsworth: Penguin Books, 1972.

MLA (9th ed.) Citation

Donaldson, John G., and Frances Lonsdale Donaldson. Farming in Britain Today. rev.ed. Penguin Books, 1972.