Davis's pocket guide to herbs and supplementsCatherine E. Ulbricht · First published 2011Open the Tome
Natural Standard medical conditions referenceCatherine E. Ulbricht · First published 2009Open the Tome
Natural Standard herb & supplement handbookEthan M. Basch, Catherine E. Ulbricht · First published 2004Open the Tome
Natural standard herb & supplement referenceCatherine E. Ulbricht, Ethan M. Basch · First published 2004Open the Tome