@book { MaryMotheroftheAfricanChurch,
    title = "Mary – Mother of the African Church",
    subtitle = "A Theological Inculturation of Mariology",
    author = "Ferdinand {Nwaigbo}",
    year = "2001",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1092084"
}