Knox, T. (1999). "Complicated Beauties": The Artificial Grotto in England, c. 1600 to the Present Day.
Chicago-Zitierstil (17. Ausg.)Knox, Tim. "Complicated Beauties": The Artificial Grotto in England, C. 1600 to the Present Day. 1999.
MLA-Zitierstil (9. Ausg.)Knox, Tim. "Complicated Beauties": The Artificial Grotto in England, C. 1600 to the Present Day. 1999.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.