APA (7e ed.) Bronvermelding

Sibley, L. (1960). A comparison of leaders in small, average, and large Sunday schools: Survey of Sunday church school leaders, 1960. Lutheran Church in America.

Chicago (17e ed.) Bronvermelding

Sibley, L. A Comparison of Leaders in Small, Average, and Large Sunday Schools: Survey of Sunday Church School Leaders, 1960. Philadelphia: Lutheran Church in America, 1960.

MLA (8e ed.) Bronvermelding

Sibley, L. A Comparison of Leaders in Small, Average, and Large Sunday Schools: Survey of Sunday Church School Leaders, 1960. Lutheran Church in America, 1960.