APA Citation

Elen, L. (1959). Exercises in higher national certificate mathematics. London: Cleaver Humo Press.

Chicago Style Citation

Elen, L.W.F. Exercises in Higher National Certificate Mathematics. London: Cleaver Humo Press, 1959.

MLA Citation

Elen, L.W.F. Exercises in Higher National Certificate Mathematics. London: Cleaver Humo Press, 1959.

Warning: These citations may not always be 100% accurate.