APA

Collins J. G., Hendershot G. E., National Center for Health Statistics U.S & National Health Interview Survey U.S. (1993). Health characteristics of large metropolitan statistical areas: United States, 1988-89. Hyattsville, Md: Public Health Service, Centers for Disease Control and Prevention, National Center for Health Statistics.

Chicago

Collins John Gary, Hendershot Gerry E, National Center for Health Statistics U.S and National Health Interview Survey U.S. 1993. Health characteristics of large metropolitan statistical areas: United States, 1988-89. Hyattsville, Md: Public Health Service, Centers for Disease Control and Prevention, National Center for Health Statistics.

Harvard

Collins J. G., Hendershot G. E., National Center for Health Statistics U.S and National Health Interview Survey U.S. (1993). Health characteristics of large metropolitan statistical areas: United States, 1988-89. Hyattsville, Md: Public Health Service, Centers for Disease Control and Prevention, National Center for Health Statistics.

MLA

Collins John Gary, Hendershot Gerry E, National Center for Health Statistics U.S and National Health Interview Survey U.S. Health characteristics of large metropolitan statistical areas: United States, 1988-89. Hyattsville, Md: Public Health Service, Centers for Disease Control and Prevention, National Center for Health Statistics. 1993.