Gaya APA

Swanson, C, P., W, I, D, G. (1959). **The how and why program story unit . Amerika: Amerika: The L.J.Bullard Co.; 1959.

Gaya MLA

Swanson, Carl, P.., W, I., Diemer,, George. "**The how and why program story unit". Amerika: Amerika: The L.J.Bullard Co.; 1959, 1959. Text.