APA Style

Steinhoff, F, G, B. (). Herbal medicinal products: scientific and regulatory basis for development quality assurance and marketing authorisation . : Boca Raton: CRC Press, 2003.

MLA Style

Steinhoff, Frauke, Gaedcke,, Barbara. "Herbal medicinal products: scientific and regulatory basis for development quality assurance and marketing authorisation". : Boca Raton: CRC Press, 2003, . BOOKS.