Dyfyniad APA
Wiles, J., & Bondi, J. (1981). The essential middle school. Charles E. Merrill.
Dyfyniad Arddull Chicago
Wiles, Jon, and Joseph Bondi. The Essential Middle School. Columbus: Charles E. Merrill, 1981.
Dyfyniad MLA
Wiles, Jon, and Joseph Bondi. The Essential Middle School. Charles E. Merrill, 1981.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.