National League for Nursing. Research and Studies Service, National League for Nursing. Division of Research, National League for Nursing. Division of Public Policy and Research, & National League for Nursing. Research and Development. (1967). State-approved schools of nursing, L.P.N./L.V.N. National League for Nursing, Research and Studies Service.
Cita Chicago (17th ed.)National League for Nursing. Research and Studies Service, National League for Nursing. Division of Research, National League for Nursing. Division of Public Policy and Research, i National League for Nursing. Research and Development. State-approved Schools of Nursing, L.P.N./L.V.N. New York, N.Y.: National League for Nursing, Research and Studies Service, 1967.
Cita MLA (8th ed.)National League for Nursing. Research and Studies Service, et al. State-approved Schools of Nursing, L.P.N./L.V.N. National League for Nursing, Research and Studies Service, 1967.