APA (7th ed.) Citation

ScienceDirect (Online service). (1990). The alkaloids. Academic Press.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service). The Alkaloids. San Diego ; London: Academic Press, 1990.

MLA (9th ed.) Citation

ScienceDirect (Online service). The Alkaloids. Academic Press, 1990.

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