Παραπομπή σε μορφή APA (7η εκδ.)

CLUTTERBUCK, P. (2015). SPELLING SUCCESS - GRADED ACTIVITIES THAT TARGET PROBLEMS IN SPELLING - LEVEL 2. SCHOLASTIC INC.

Παραπομπή σε μορφή Chicago (17η εκδ.)

CLUTTERBUCK, PETER. SPELLING SUCCESS - GRADED ACTIVITIES THAT TARGET PROBLEMS IN SPELLING - LEVEL 2. GURGOAN: SCHOLASTIC INC, 2015.

Παραπομπή σε μορφή MLA (9th εκδ.)

CLUTTERBUCK, PETER. SPELLING SUCCESS - GRADED ACTIVITIES THAT TARGET PROBLEMS IN SPELLING - LEVEL 2. SCHOLASTIC INC, 2015.