APA
Hanna L. A., Hagaman N. (. & Hanna L. A. (1963). Unit teaching in the elementary school. New York: Holt, Rinehart and Winston.
Chicago
Hanna Lavone A, Hagaman Neva (Ed) and Hanna Lavone A. 1963. Unit teaching in the elementary school. New York: Holt, Rinehart and Winston.
Harvard
Hanna L. A., Hagaman N. (. and Hanna L. A. (1963). Unit teaching in the elementary school. New York: Holt, Rinehart and Winston.
MLA
Hanna Lavone A, Hagaman Neva (Ed) and Hanna Lavone A. Unit teaching in the elementary school. New York: Holt, Rinehart and Winston. 1963.