Sleep and Relaxation: A Natural and Herbal ApproachBarbara L. Heller · First published 1999Open the Tome
The only math book you'll ever needStanley Kogelman, Barbara R. Heller · First published 1986Open the Tome
Special functions and the characterization of probability distributions by constant regression of polynomial statistics on the meanBarbara Heller · First published 1979Open the Tome