Tamminen, K. (1991). Religious development in childhood and youth: An empirical study. Suomalainen Tiedeakatemia.
Cita Chicago Style (17a ed.)Tamminen, Kalevi. Religious Development in Childhood and Youth: An Empirical Study. Helsinki: Suomalainen Tiedeakatemia, 1991.
Cita MLA (9a ed.)Tamminen, Kalevi. Religious Development in Childhood and Youth: An Empirical Study. Suomalainen Tiedeakatemia, 1991.
Precaución: Estas citas no son 100% exactas.