Creswell, J. W. (2016). 30 Essential Skills for the Qualitative Researcher. SAGE Publications, Inc.
Chicago-viite (17. p.)Creswell, John W. 30 Essential Skills for the Qualitative Researcher. California: SAGE Publications, Inc, 2016.
MLA-viite (9. p.)Creswell, John W. 30 Essential Skills for the Qualitative Researcher. SAGE Publications, Inc, 2016.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.