Cowles, M. (1989). Echos of an era. Westminster Congregational United Church of Christ.
Cita Chicago Style (17a ed.)Cowles, Margaret. Echos of an Era. Spokane, WA (S. 411 Washington, Spokane 99204): Westminster Congregational United Church of Christ, 1989.
Cita MLA (8a ed.)Cowles, Margaret. Echos of an Era. Westminster Congregational United Church of Christ, 1989.
Precaución: Estas citas no son 100% exactas.