APA (7th ed.) Citation

Butterworth, N., & Inkpen, M. (1990). La Perla blanca. Cruïlla.

Chicago Style (17th ed.) Citation

Butterworth, Nick, and Mick Inkpen. La Perla Blanca. Barcelona: Cruïlla, 1990.

MLA (9th ed.) Citation

Butterworth, Nick, and Mick Inkpen. La Perla Blanca. Cruïlla, 1990.

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