Gaya APA

Bühler, V. (2005). Polyvinylpyrrolidone Excipients for Pharmaceuticals (1st ed.). Berlin, Heidelberg: Springer.

Gaya MLA

Bühler, Volker.. "Polyvinylpyrrolidone Excipients for Pharmaceuticals". 1st ed. Berlin, Heidelberg: Springer, 2005. E Book.