Gaya APA

McGuffin, S, J. (). An Investigation of the Effect of the Introduction of General Certificate of Secondary Education (GCSE) on Performance at Advenced Level Chemistry in Northern Ireland . : .

Gaya MLA

McGuffin, Samuel, John. "An Investigation of the Effect of the Introduction of General Certificate of Secondary Education (GCSE) on Performance at Advenced Level Chemistry in Northern Ireland ". : , . .