APA (7th ed.) Citation

Ravielli, A. (1960). Adventure with shapes. Phoenix House.

Chicago Style (17th ed.) Citation

Ravielli, Anthony. Adventure with Shapes. London: Phoenix House, 1960.

MLA (9th ed.) Citation

Ravielli, Anthony. Adventure with Shapes. Phoenix House, 1960.

Warning: These citations may not always be 100% accurate.