Sparks, C. (1942). Newer types of vacation church sch. programs. Presbyterian College of Christian Education.
Chicago-referens (17:e uppl.)Sparks, Catherine. Newer Types of Vacation Church Sch. Programs. Chicago: Presbyterian College of Christian Education, 1942.
MLA-referens (8:e uppl.)Sparks, Catherine. Newer Types of Vacation Church Sch. Programs. Presbyterian College of Christian Education, 1942.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.