Gaya APA

Semper, R, J. (2009). The exploratorium science snackbook : cook up over 100 hands-on science exhibits from everyday materials (Revised editions). San Fransisco: Jossey-Bass.

Gaya MLA

Semper, Robert, J.. "The exploratorium science snackbook : cook up over 100 hands-on science exhibits from everyday materials". Revised editions San Fransisco: Jossey-Bass, 2009. Text.