Sheperd, R. (2002). Structures of our time31 buildings that changed modern life2002. McGraw-Hill.
Chicago-viite (17. p.)Sheperd, Roger. Structures of Our Time31 Buildings That Changed Modern Life2002. McGraw-Hill, 2002.
MLA-viite (8. p.)Sheperd, Roger. Structures of Our Time31 Buildings That Changed Modern Life2002. McGraw-Hill, 2002.
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