APA

National Center for Education Statistics, . (1977). Science technical report, summary volume. [Washington, D.C: .

Chicago

National Center for Education Statistics, . 1977. Science technical report, summary volume. [Washington, D.C: .

Harvard

National Center for Education Statistics, . (1977). Science technical report, summary volume. [Washington, D.C: .

MLA

National Center for Education Statistics, . Science technical report, summary volume. [Washington, D.C: . 1977.