Longleat House (Warminster, England), Somerset, E. S., & Somerset, W. S. (1971). Seymour papers. Micro Methods Ltd..
Dyfyniad Arddull ChicagoLongleat House (Warminster, England), Edward Seymour Somerset, and William Seymour Somerset. Seymour Papers. East Ardsley, Wakefield, West Yorkshire: Micro Methods Ltd., 1971.
Dyfyniad MLALongleat House (Warminster, England), et al. Seymour Papers. Micro Methods Ltd., 1971.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.