APA (7th ed.) Citation

Astrid Lindgren & Ilon Wikland. (1963). The six Bullerby children. Magnet.

Chicago Style (17th ed.) Citation

Astrid Lindgren and Ilon Wikland. The Six Bullerby Children. London: Magnet, 1963.

MLA (9th ed.) Citation

Astrid Lindgren and Ilon Wikland. The Six Bullerby Children. Magnet, 1963.

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