Cita APA (7a ed.)

Gibbons, P., & Heintze, H. (2015). The humanitarian challenge: 20 Years European Network on Humanitarian Action (NOHA). Springer.

Cita Chicago Style (17a ed.)

Gibbons, Pat, y Hans-Joachim Heintze. The Humanitarian Challenge: 20 Years European Network on Humanitarian Action (NOHA). Cham [etc.]: Springer, 2015.

Cita MLA (9a ed.)

Gibbons, Pat, y Hans-Joachim Heintze. The Humanitarian Challenge: 20 Years European Network on Humanitarian Action (NOHA). Springer, 2015.