APA (7th ed.) Citation

Sage, A. Septimus Heap. Katherine Tegen Books.

Chicago Style (17th ed.) Citation

Sage, Angie. Septimus Heap. New York, NY: Katherine Tegen Books.

MLA (9th ed.) Citation

Sage, Angie. Septimus Heap. Katherine Tegen Books.

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