APA

Sapp G. L., . (1986). Handbook of moral development: models, processes, techniques, and research. Birmingham, Ala: Religious Education Press.

Chicago

Sapp Gary L, . 1986. Handbook of moral development: models, processes, techniques, and research. Birmingham, Ala: Religious Education Press.

Harvard

Sapp G. L., . (1986). Handbook of moral development: models, processes, techniques, and research. Birmingham, Ala: Religious Education Press.

MLA

Sapp Gary L, . Handbook of moral development: models, processes, techniques, and research. Birmingham, Ala: Religious Education Press. 1986.