John, Joseph Textbook of Preventive and Community Dentistry-1: public health dentistry / by Joseph John - 4th.ed - India : CBS Publishers & Distributors Pvt Ltd ; 2016. - xv, 380 p. : 25 cm. Printed in pakistan. Subjects--Topical Terms: Medical /Dentistry Dewey Class. No.: 617.601 / JOH-T