Cita APA (7a ed.)

Billig, S. H., & Gelmon, S. B. (2007). From passion to objectivity: International and cross-disciplinary perspectives on service-learning research. IAP.

Cita Chicago Style (17a ed.)

Billig, Shelley H., y Sherril B. Gelmon. From Passion to Objectivity: International and Cross-disciplinary Perspectives on Service-learning Research. Charlotte, North Carolina: IAP, 2007.

Cita MLA (9a ed.)

Billig, Shelley H., y Sherril B. Gelmon. From Passion to Objectivity: International and Cross-disciplinary Perspectives on Service-learning Research. IAP, 2007.