APA
Clutterbuck P., . (2008). Brainteasers, puzzles and games (level-3). New York: Scholastic.
Chicago
Clutterbuck Peter, . 2008. Brainteasers, puzzles and games (level-3). New York: Scholastic.
Harvard
Clutterbuck P., . (2008). Brainteasers, puzzles and games (level-3). New York: Scholastic.
MLA
Clutterbuck Peter, . Brainteasers, puzzles and games (level-3). New York: Scholastic. 2008.