APA-referens (7:e uppl.)

Avery, W. L. (1973). Indigenous worship in the churches of Sierra Leone.

Chicago-referens (17:e uppl.)

Avery, William Leslie. Indigenous Worship in the Churches of Sierra Leone. Addis Ababa, 1973.

MLA-referens (8:e uppl.)

Avery, William Leslie. Indigenous Worship in the Churches of Sierra Leone. 1973.