Trigonometry /
Larson, Ron, 1941-
Trigonometry / Roland E. Larson, Robert P. Hostetler ; with the assistance of David E. Heyd. - Lexington, Mass. : Heath, c1985. - xvi, 322, 56 p. : ill. (some col.) ; 24 cm.
Trigonometry / Roland E. Larson, Robert P. Hostetler ; with the assistance of David E. Heyd. - Lexington, Mass. : Heath, c1985. - xvi, 322, 56 p. : ill. (some col.) ; 24 cm.