APA استشهاد

Nelkon, M., & Ogborn, J. (1970). Advanced level practical physics (3rd ed.). ELBS.

استشهاد بنمط شيكاغو

Nelkon, M., و J.M Ogborn. Advanced Level Practical Physics. 3rd ed. London: ELBS, 1970.

MLA استشهاد

Nelkon, M., و J.M Ogborn. Advanced Level Practical Physics. 3rd ed. ELBS, 1970.