Dyfyniad APA

Lewis, J. A., & Lewis, M. D. (1991). Management of human service programs (2nd ed.). Brooks/Cole.

Dyfyniad Arddull Chicago

Lewis, Judith A., and Michael D. Lewis. Management of Human Service Programs. 2nd ed. Pacific Grove: Brooks/Cole, 1991.

Dyfyniad MLA

Lewis, Judith A., and Michael D. Lewis. Management of Human Service Programs. 2nd ed. Brooks/Cole, 1991.

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