Banas, N., Wills, I. H., & Liberman, J. (1978). H.E.L.P.: A guide to assessing academic and social adjustment. Humanics.
Lua i Stíl Chicago (17ú heag.)Banas, Norma, I. H. Wills, agus Jack Liberman. H.E.L.P.: A Guide to Assessing Academic and Social Adjustment. Atlanta: Humanics, 1978.
Lua MLA (8ú heag.)Banas, Norma, et al. H.E.L.P.: A Guide to Assessing Academic and Social Adjustment. Humanics, 1978.
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