Παραπομπή σε μορφή APA (7η εκδ.)

(2004). Principles and practice of engineering. [National Council of Examiners for Engineering and Surveying]. Structural engineering II, sample questions & solutions.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Principles and Practice of Engineering. [National Council of Examiners for Engineering and Surveying]. Structural Engineering II, Sample Questions & Solutions. 2004.

Παραπομπή σε μορφή MLA (9th εκδ.)

Principles and Practice of Engineering. [National Council of Examiners for Engineering and Surveying]. Structural Engineering II, Sample Questions & Solutions. 2004.