Cita APA (7th ed.)

Hélein, F. (2002). Harmonic maps, conservation laws, and moving frames (2nd ed.). Cambridge University Press.

Cita Chicago (17th ed.)

Hélein, Frédéric. Harmonic Maps, Conservation Laws, and Moving Frames. 2nd ed. Cambridge ; New York: Cambridge University Press, 2002.

Cita MLA (9th ed.)

Hélein, Frédéric. Harmonic Maps, Conservation Laws, and Moving Frames. 2nd ed. Cambridge University Press, 2002.