Maximilian Dyer - Elementary Trigonometry - New paperback or softback - X555z

Paterson - Elementary Trigonometry - New paperback or softback - 84 - X555z

Elementary Trigonometry (Paperback or Softback)

Kumar - TRICKS OF TRIGONOMETRY - New paperback or softback - X555z

Borchardt - A New Trigonometry for Schools - New paperback or softback - X555z

Lock - A Treatise On Higher Trigonometry - New paperback or softback - - X555z

Morgan - Trigonometry and Double Algebra - New paperback or softback - - X555z

Hann - Elements of Spherical Trigonometry - New paperback or softback - X555z