Dyfyniad APA

Phillips, E. L. (1972). Discipline, achievement and mental health. Prentice Hall.

Dyfyniad Arddull Chicago

Phillips, E. Lakin. Discipline, Achievement and Mental Health. New York: Prentice Hall, 1972.

Dyfyniad MLA

Phillips, E. Lakin. Discipline, Achievement and Mental Health. Prentice Hall, 1972.

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