APA (7th ed.) Citation

Johnston. (1989). Environmental problems: Nature, economy and state. Belhaven.

Chicago Style (17th ed.) Citation

Johnston. Environmental Problems: Nature, Economy and State. London: Belhaven, 1989.

MLA (9th ed.) Citation

Johnston. Environmental Problems: Nature, Economy and State. Belhaven, 1989.

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