Dyfyniad APA

Miller, F. W., Fruehling, J. A., & Lewis, G. J. (1978). Guidance principles and services (3rd ed.). Merrill.

Dyfyniad Arddull Chicago

Miller, Frank Walter, James A. Fruehling, and Gloria J. Lewis. Guidance Principles and Services. 3rd ed. Columbus, Ohio: Merrill, 1978.

Dyfyniad MLA

Miller, Frank Walter, et al. Guidance Principles and Services. 3rd ed. Merrill, 1978.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.