APA-viite (7. p.)

CLUTTERBUCK, P. (2015). SPELLING SUCCESS - GRADED ACTIVITIES THAT TARGET PROBLEMS IN SPELLING - LEVEL 3. SCHOLASTIC INC.

Chicago-viite (17. p.)

CLUTTERBUCK, PETER. SPELLING SUCCESS - GRADED ACTIVITIES THAT TARGET PROBLEMS IN SPELLING - LEVEL 3. GURGOAN: SCHOLASTIC INC, 2015.

MLA-viite (9. p.)

CLUTTERBUCK, PETER. SPELLING SUCCESS - GRADED ACTIVITIES THAT TARGET PROBLEMS IN SPELLING - LEVEL 3. SCHOLASTIC INC, 2015.