APA استشهاد

Durell, C. V. (1964). Key to elementary coordinate geometry. G Bell and Sons.

استشهاد بنمط شيكاغو

Durell, C. V. Key to Elementary Coordinate Geometry. London: G Bell and Sons, 1964.

MLA استشهاد

Durell, C. V. Key to Elementary Coordinate Geometry. G Bell and Sons, 1964.