APA (7th ed.) Citation

Winthrop, E., & Massey, J. (2015). Lucy and Henry are twins. Two Lions.

Chicago Style (17th ed.) Citation

Winthrop, Elizabeth, and Jane Massey. Lucy and Henry Are Twins. New York: Two Lions, 2015.

MLA (8th ed.) Citation

Winthrop, Elizabeth, and Jane Massey. Lucy and Henry Are Twins. Two Lions, 2015.

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