Modulation and Related Harmonic Questions (Classic Reprint)

The Secret of Life, or Harmonic Vibration (Classic Reprint)

Modulation and Related Harmonic Questions (Paperback or Softback)

Harmonic Analysis (Classic Reprint)

Jorge Loyzaga: Classical and Harmonic Proportions, , Acceptable Book

Nitrate Occurrence in U. S. Waters (and Related Questions) (Classic Reprint)

Harmonic Structure and Elementary Composition (Classic Reprint)

Questions on Natural Science and the Harmonic Philosophy (Classic Reprint)