APA

United States, . (1969). Directory, medicare providers and suppliers of services, hospitals, extended care facilities, home health agencies, outpatient physical therapy, independent laboratories, title 18, health insurance for the aged. [Washington, D.C: .

Chicago

United States, . 1969. Directory, medicare providers and suppliers of services, hospitals, extended care facilities, home health agencies, outpatient physical therapy, independent laboratories, title 18, health insurance for the aged. [Washington, D.C: .

Harvard

United States, . (1969). Directory, medicare providers and suppliers of services, hospitals, extended care facilities, home health agencies, outpatient physical therapy, independent laboratories, title 18, health insurance for the aged. [Washington, D.C: .

MLA

United States, . Directory, medicare providers and suppliers of services, hospitals, extended care facilities, home health agencies, outpatient physical therapy, independent laboratories, title 18, health insurance for the aged. [Washington, D.C: . 1969.