APA (7th ed.) Citation

Robbins, S. R. J., & Greenhalgh, P. (1979). The markets for selected herbaceous essential oils. Tropical Products Institute.

Chicago Style (17th ed.) Citation

Robbins, S. R. J., and P. Greenhalgh. The Markets for Selected Herbaceous Essential Oils. London: Tropical Products Institute, 1979.

MLA (9th ed.) Citation

Robbins, S. R. J., and P. Greenhalgh. The Markets for Selected Herbaceous Essential Oils. Tropical Products Institute, 1979.