Esguerra, D. O. V. A historical analysis of the social and cultural significance of stairs and stair designs.
Chicago-referens (17:e uppl.)Esguerra, Divina Oliva Villegas. A Historical Analysis of the Social and Cultural Significance of Stairs and Stair Designs. 1998.
MLA-referens (9:e uppl.)Esguerra, Divina Oliva Villegas. A Historical Analysis of the Social and Cultural Significance of Stairs and Stair Designs.
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