Sparks, C. (1942). Newer types of vacation church sch. programs. Presbyterian College of Christian Education.
Lua i Stíl Chicago (17ú heag.)Sparks, Catherine. Newer Types of Vacation Church Sch. Programs. Chicago: Presbyterian College of Christian Education, 1942.
Lua MLA (8ú heag.)Sparks, Catherine. Newer Types of Vacation Church Sch. Programs. Presbyterian College of Christian Education, 1942.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.