Παραπομπή APA

Spigolon, S. (2001). The McGraw-Hill civil engineering PE exam depth guide: Geotechnical engineering. New York: McGraw-Hill.

Παραπομπή Chicago Style

Spigolon, S.J. The McGraw-Hill Civil Engineering PE Exam Depth Guide: Geotechnical Engineering. New York: McGraw-Hill, 2001.

Παραπομπή MLA

Spigolon, S.J. The McGraw-Hill Civil Engineering PE Exam Depth Guide: Geotechnical Engineering. New York: McGraw-Hill, 2001.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.