Dyfyniad APA

Skevington, J. (1988). Practical assessment: Physics for GCSE. Unwin Hymn.

Dyfyniad Arddull Chicago

Skevington, John. Practical Assessment: Physics for GCSE. London: Unwin Hymn, 1988.

Dyfyniad MLA

Skevington, John. Practical Assessment: Physics for GCSE. Unwin Hymn, 1988.

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