Wieck, R. S., Poos, L., Plummer, J., & Reinburg, V. (1988). Time sanctified: The Book of hours in medieval art and life. G. Braziller in association with the Walters Art Gallery, Baltimore.
Dyfyniad Arddull ChicagoWieck, Roger S., Lawrence Poos, John Plummer, and Virginia Reinburg. Time Sanctified: The Book of Hours in Medieval Art and Life. New York: G. Braziller in association with the Walters Art Gallery, Baltimore, 1988.
Dyfyniad MLAWieck, Roger S., et al. Time Sanctified: The Book of Hours in Medieval Art and Life. G. Braziller in association with the Walters Art Gallery, Baltimore, 1988.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.