Lua APA (7ú heag.)

BOWELS, J. E. (1988). Foundation analysis and design.-- Ed.4. McGraw-Hill Book.

Lua i Stíl Chicago (17ú heag.)

BOWELS, Jaseph E. Foundation Analysis and Design.-- Ed.4. Singapore: McGraw-Hill Book, 1988.

Lua MLA (9ú heag.)

BOWELS, Jaseph E. Foundation Analysis and Design.-- Ed.4. McGraw-Hill Book, 1988.

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