Gaya APA

Swanson, C, P., Kaempffer, F. (1967). **The elements of physics a new approach . Massachusetts: Massachusetts: Blaisdell; 1967.

Gaya MLA

Swanson, Carl, P.., Kaempffer, F.A. "**The elements of physics a new approach". Massachusetts: Massachusetts: Blaisdell; 1967, 1967. Text.