Robertson, Leon S. Medical sociology : a general systems approach / Leon S. Robertson, Margaret C. Heagarty. - Chicago : Nelson-Hall Publishers, [1975] - ix, 220 p. : ill. ; 23 cm. Includes indexes. Bibliography: p. [189]-208. ISBN: 0882291270 LCCN: 75009779 Subjects--Topical Terms: Social medicine.Social medicine. LC Class. No.: RA418 / .R58 Dewey Class. No.: 362.1 / ROM National Library of Medicine Call No.: WA30 R651m