Gaya APA

Reinecke, R, D., Herm, R, J. (1976). Refraction: A Programmed Text (2nd ed). New York: Appleton Century Crofts.

Gaya MLA

Reinecke, Robert, D., Herm, Robert, J. "Refraction: A Programmed Text". 2nd ed New York: Appleton Century Crofts, 1976. print.