Blackwell, W. H., Powell, M. J., & Cobbe, T. J. (1990). Poisonous and medicinal plants. Prentice-Hall.
Chicago Style (17th ed.) CitationBlackwell, Will H., Martha J. Powell, and Thomas J. Cobbe. Poisonous and Medicinal Plants. Englewood Cliffs: Prentice-Hall, 1990.
MLA (9th ed.) CitationBlackwell, Will H., et al. Poisonous and Medicinal Plants. Prentice-Hall, 1990.
Warning: These citations may not always be 100% accurate.