APA Citation

Strogatz, & Joffray. (2009). The calculus of friendship: What a teacher and a student learned about life while corresponding about math. Princeton: Princeton University Press.

Chicago Style Citation

Strogatz, and Joffray. The Calculus of Friendship: What a Teacher and a Student Learned About Life While Corresponding About Math. Princeton: Princeton University Press, 2009.

MLA Citation

Strogatz, and Joffray. The Calculus of Friendship: What a Teacher and a Student Learned About Life While Corresponding About Math. Princeton: Princeton University Press, 2009.

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