Cita APA (7a ed.)

Essig, S., Skinner, R., Weid, N. X. v. d., Kuehni, C. E., & Michel, G. (2012). Follow-up programs for childhood cancer survivors in Europe: A questionnaire survey. Public Library of Science (PLoS).

Cita Chicago Style (17a ed.)

Essig, Stefan, Roderick Skinner, Nicolas X von der Weid, Claudia E. Kuehni, y Gisela Michel. Follow-up Programs for Childhood Cancer Survivors in Europe: A Questionnaire Survey. Public Library of Science (PLoS), 2012.

Cita MLA (8a ed.)

Essig, Stefan, et al. Follow-up Programs for Childhood Cancer Survivors in Europe: A Questionnaire Survey. Public Library of Science (PLoS), 2012.