Dyfyniad APA

Shertzer, B., & Stone, S. C. (1976). Fundamentals of guidance (3d ed.). Houghton Mifflin.

Dyfyniad Arddull Chicago

Shertzer, Bruce, and Shelley C. Stone. Fundamentals of Guidance. 3d ed. Boston: Houghton Mifflin, 1976.

Dyfyniad MLA

Shertzer, Bruce, and Shelley C. Stone. Fundamentals of Guidance. 3d ed. Houghton Mifflin, 1976.

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