APA-viite

Bielawski, R., Houston, K., & Speight, J. M. (2012). Variational problems in differential geometry: University of Leeds, 2009. Cambridge University Press.

Chicago-tyylinen lähdeviittaus

Bielawski, R., Kevin Houston, ja J. M. Speight. Variational Problems in Differential Geometry: University of Leeds, 2009. Cambridge, UK ; New York: Cambridge University Press, 2012.

MLA-viite

Bielawski, R., et al. Variational Problems in Differential Geometry: University of Leeds, 2009. Cambridge University Press, 2012.