APA

Bethel H. E., National Institute of Mental Health (U.S.), . (1973). Provisional patient movement and administrative data State and county mental hospital inpatient services, July 1, 1971-June 30, 1972. [Washington, D.C: .

Chicago

Bethel Helen E, National Institute of Mental Health (U.S.), . 1973. Provisional patient movement and administrative data State and county mental hospital inpatient services, July 1, 1971-June 30, 1972. [Washington, D.C: .

Harvard

Bethel H. E., National Institute of Mental Health (U.S.), . (1973). Provisional patient movement and administrative data State and county mental hospital inpatient services, July 1, 1971-June 30, 1972. [Washington, D.C: .

MLA

Bethel Helen E, National Institute of Mental Health (U.S.), . Provisional patient movement and administrative data State and county mental hospital inpatient services, July 1, 1971-June 30, 1972. [Washington, D.C: . 1973.