APA (7th ed.) Zitazioa

Khanna, P. N. Practical Civil Engineers' Handbook (4th ed.).

Chicago Style (17th ed.) Zitazioa

Khanna, P. N. Practical Civil Engineers' Handbook. 4th ed.

MLA (9th ed.) Zitazioa

Khanna, P. N. Practical Civil Engineers' Handbook. 4th ed.

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