Coleman, J. G. (2012). Passion and Purpose (14th ed.). Pearson Education.
Chicago-viite (17. p.)Coleman, John; Gulati. Passion and Purpose. 14th ed. New Delhi: Pearson Education, 2012.
MLA-viite (9. p.)Coleman, John; Gulati. Passion and Purpose. 14th ed. Pearson Education, 2012.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.