Miller, F. W., Fruehling, J. A., & Lewis, G. J. (1978). Guidance principles and services (3rd ed.). Merrill.
Lua i Stíl Chicago (17ú heag.)Miller, Frank Walter, James A. Fruehling, agus Gloria J. Lewis. Guidance Principles and Services. 3rd ed. Columbus, Ohio: Merrill, 1978.
Lua MLA (9ú heag.)Miller, Frank Walter, et al. Guidance Principles and Services. 3rd ed. Merrill, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.