APA (7th ed.) Citation

Voigt, N. R. (2006). Six-minute solutions for civil PE exam: Transportation problems (Second edition.). Professional Publications.

Chicago Style (17th ed.) Citation

Voigt, Norman R. Six-minute Solutions for Civil PE Exam: Transportation Problems. Second edition. Belmont, CA: Professional Publications, 2006.

MLA (9th ed.) Citation

Voigt, Norman R. Six-minute Solutions for Civil PE Exam: Transportation Problems. Second edition. Professional Publications, 2006.