APA (7th ed.) Citation

Seixas, J. S., & Huffman, T. (1987). Drugs--what they are, what they do. Greenwillow Books.

Chicago Style (17th ed.) Citation

Seixas, Judith S., and Tom Huffman. Drugs--what They Are, What They Do. New York: Greenwillow Books, 1987.

MLA (9th ed.) Citation

Seixas, Judith S., and Tom Huffman. Drugs--what They Are, What They Do. Greenwillow Books, 1987.