Dyfyniad APA

Nelkon, M., & Ogborn, J. M. (1977). Advanced level practical physics (4th ed.). Heinemann education.

Dyfyniad Arddull Chicago

Nelkon, M., and J. M. Ogborn. Advanced Level Practical Physics. 4th ed. London: Heinemann education, 1977.

Dyfyniad MLA

Nelkon, M., and J. M. Ogborn. Advanced Level Practical Physics. 4th ed. Heinemann education, 1977.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.