APA (7th ed.) Citation

Hellen, N. (1990). Get up, Katie! Blackie.

Chicago Style (17th ed.) Citation

Hellen, Nancy. Get Up, Katie! Blackie, 1990.

MLA (9th ed.) Citation

Hellen, Nancy. Get Up, Katie! Blackie, 1990.

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