Jeffery, Ralph L.

Coordinate geometry and trigonometry / by R. L. Jeffery and K. D. C. Haley.  Rev. ed. Halifax : Department of Education, 1969. iii, 211 pages : illustrations ; 28 cm.

Includes index.

Haley, Kenneth D. C., 1915-

Nova Scotia. Dept. of Education.

Geometry — Study and teaching
Trigonometry — Study and teaching

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