Gaya APA

Zimmerman, B, E., Zimmerman, D, J. (1993). Why nothing can travel faster than light and other explorations in nature`s curiosity shop . Lincolnwood (Chicago): Contemporary Books.

Gaya MLA

Zimmerman, Barry, E.., Zimmerman, David, J.. "Why nothing can travel faster than light and other explorations in nature`s curiosity shop". Lincolnwood (Chicago): Contemporary Books, 1993. Text.