ScienceDirect (Online service) & Allan, P. L. P. (2006). Clinical Doppler ultrasound (2nd ed.). Churchill Livingstone/Elsevier.
Chicago Style (17th ed.) CitationScienceDirect (Online service) and Paul L. P. Allan. Clinical Doppler Ultrasound. 2nd ed. [Oxford]: Churchill Livingstone/Elsevier, 2006.
MLA (9th ed.) CitationScienceDirect (Online service) and Paul L. P. Allan. Clinical Doppler Ultrasound. 2nd ed. Churchill Livingstone/Elsevier, 2006.
Warning: These citations may not always be 100% accurate.