Tietjen, M. L. (1976). The Bethlehem tree: A family Advent resource book. Paulist Press.
Chicagoスタイル(17版)引用形式Tietjen, Mary Louise. The Bethlehem Tree: A Family Advent Resource Book. New York: Paulist Press, 1976.
MLA(8版)引用形式Tietjen, Mary Louise. The Bethlehem Tree: A Family Advent Resource Book. Paulist Press, 1976.
警告: この引用は必ずしも正確ではありません.