John L. Echternach

Fundamentals of Mechanics and Heat 2nd ed

John L. Echternach, 1975 .

Biomedical Instrumentation and Measurements

John L. Echternach, J. Echternach, 1974 .

Task Force on Standards for Measurement in Physical Therapy. Standards for tests and measurements in physical therapy practice.

Alan M. Jette, John L. Echternach, A. Jette, 1991, Physical therapy.