APA (7th ed.) Citation

Johnson, C. B. (1981). Physiological processes limiting plant productivity. Butterworths.

Chicago Style (17th ed.) Citation

Johnson, C. B. Physiological Processes Limiting Plant Productivity. London: Butterworths, 1981.

MLA (9th ed.) Citation

Johnson, C. B. Physiological Processes Limiting Plant Productivity. Butterworths, 1981.

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